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暗記メーカー

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notes 1 lec 1to 7
100問 • 1年前
  • Nayan Kumar
    • 通報

    問題一覧

  • 1

    Physical state of a body defined with the help of

    velocity

  • 2

    When an object is in equilibrium state then

    it's net acceleration must be zero

  • 3

    When an object is at rest

    a large number of forces may be acting on it which balance each other

  • 4

    An athlete does not come to rest immediately after crossing the winning line due to the

    inertia of motion

  • 5

    Why does the horse rider horse forward when a horse had full gallup stop suddenly

    due to inertia of motion

  • 6

    A boy sitting on the top most berth in the compartment of a train which is just point to stop on a railway station drops an apple aiming at the open hand of his brother sitting vertically below his hands at a distance of about 2 m the Apple will fall

    slightly away from the hand of his brother in the direction of motion of the train

  • 7

    A force of constant magnitude acts in direction perpendicular to the motion of a particle then its

    speed is uniform

  • 8

    Friction force is derived from

    electromagnetic force

  • 9

    Which of the following is not fundamental force

    friction force

  • 10

    Which of the following is incorrect about normal reaction force

    parallel to contact surface

  • 11

    Which of the following is derived force

    tension force

  • 12

    which of the following is incorrect about weight force

    direction away from the centre of earth

  • 13

    2

  • 14

    Which of the following is incorrect about tension force

    if string is cut having some tension then tension force will not become zero instantaneously

  • 15

    Which of the following is incorrect

    if a streched spring spring is cut spring force will become zero instantaneously

  • 16

    Find net force on M2 block if M2 is in rest

    0

  • 17

    Find net force on block of mass m

    0

  • 18

    A block is stationary on a rough incline plane how many forces are acting on the block

    3

  • 19

    A book of mass 5 kg is placed on a table and it is pressed by 10 N force then normal force exerted by table on the book is

    59N

  • 20

    3 blocks with masses m,2m,3m are connected by strings as shown in the figure after an upward force F is applied on block m the masses move upward at constant speed v00 what is the net force on the mass of block 2 m

    0

  • 21

    t

  • 22

    Find contact force(normal) between 8 kg block and ground

    130N

  • 23

    T1 ,T2 ,&T3 respectively are

    40 ,70 ,150 N

  • 24

    Find contact force on ground by block

    t

  • 25

    If system is in equilibrium then find value of m

    8kg

  • 26

    m1=√3m2

  • 27

    Fine for applied by 5kg on 10kg

    100N

  • 28

    Fine for applied by 5kg on 4kg

    150N

  • 29

    48mg

  • 30

    5kg

  • 31

    Fine tension and angle both

    t

  • 32

    A uniform rope of mass m and length l is fixed at it upper end vertically from a rigid support then the tension in the rope at the distance x from bottom of the rod is

    mgx/l

  • 33

    3

  • 34

    Distance from bottom to A point is 3m

    3

  • 35

    60N

  • 36

    10N

  • 37

    Delete

    29.4N

  • 38

    3

  • 39

    2

  • 40

    3

  • 41

    2

  • 42

    2

  • 43

    1

  • 44

    2

  • 45

    4

  • 46

    25N

  • 47

    t

  • 48

    2

  • 49

    2

  • 50

    3

  • 51

    2

  • 52

    A=m & B =2m respectively

    2g upward & g downward

  • 53

    1

  • 54

    1

  • 55

    2

  • 56

    2

  • 57

    3

  • 58

    2

  • 59

    4

  • 60

    4

  • 61

    3

  • 62

    0

  • 63

    Normal reaction on 12 kg due to ground

    20N

  • 64

    Find mass m if system is at rest

    20kg

  • 65

    Find mass m system if system is in equilibrium

    40kg

  • 66

    Find reading in each spring

    25N & 25N

  • 67

    Balance force cannot accelerate the body but balance force can change shape and size of body

    true

  • 68

    Direction of force is along

    along the direction of change in momentum

  • 69

    -2mu

  • 70

    mu

  • 71

    Magnitude of change in momentum is

    √2mu

  • 72

    Calculate change in momentum

    mu

  • 73

    Calculate magnitude of change in momentum

    2mu

  • 74

    Calculate change in magnitude of momentum

    0

  • 75

    t

  • 76

    If object is moving with constant velocity then force on it must be zero(in variable mas system)

    false

  • 77

    4N

  • 78

    1:3

  • 79

    1

  • 80

    4√5 N-s

  • 81

    3

  • 82

    0.4m/s

  • 83

    2

  • 84

    2

  • 85

    6.67kg/s

  • 86

    2

  • 87

    2

  • 88

    3

  • 89

    3

  • 90

    If impulse varies with time t as(kg m/s)=20t²-40t the change in momentum is minimum at

    t=1s

  • 91

    A balloon has 2 g air. a small hole is pierced into it the air comes out with a velocity of 4 m/s if the balloons shrinks completely in 2.5 s the average force acting on the balloon is

    0.0032N

  • 92

    A bullet of mass 50 g is fired from a gun with initial velocity of 32 m/s if mass of the gun is 4 kg then calculate the recoil velocity of the gun

    0.4m/s

  • 93

    15î +4j

  • 94

    8N

  • 95

    Find T1 & T2. in the given diagram

    96N,56N

  • 96

    What will be the tension T1 &T2 in the given diagram

    36N, 60N

  • 97

    6N

  • 98

    10N

  • 99

    4

  • 100

    3

    • class questions

    class questions

    Nayan Kumar · 8問 · 1年前

    class questions

    class questions

    8問 • 1年前
    Nayan Kumar

    dpp questions

    dpp questions

    Nayan Kumar · 8問 · 1年前

    dpp questions

    dpp questions

    8問 • 1年前
    Nayan Kumar

    mistakes previous year

    mistakes previous year

    Nayan Kumar · 47問 · 1年前

    mistakes previous year

    mistakes previous year

    47問 • 1年前
    Nayan Kumar

    silly mistake

    silly mistake

    Nayan Kumar · 15問 · 1年前

    silly mistake

    silly mistake

    15問 • 1年前
    Nayan Kumar

    data and facts

    data and facts

    Nayan Kumar · 18問 · 1年前

    data and facts

    data and facts

    18問 • 1年前
    Nayan Kumar

    notes

    notes

    Nayan Kumar · 38問 · 1年前

    notes

    notes

    38問 • 1年前
    Nayan Kumar

    notes 1 from constant acceleration

    notes 1 from constant acceleration

    Nayan Kumar · 100問 · 1年前

    notes 1 from constant acceleration

    notes 1 from constant acceleration

    100問 • 1年前
    Nayan Kumar

    Learn fast

    Learn fast

    Nayan Kumar · 29問 · 1年前

    Learn fast

    Learn fast

    29問 • 1年前
    Nayan Kumar

    notes 2 from motion under gravity

    notes 2 from motion under gravity

    Nayan Kumar · 7問 · 1年前

    notes 2 from motion under gravity

    notes 2 from motion under gravity

    7問 • 1年前
    Nayan Kumar

    frog

    frog

    Nayan Kumar · 44問 · 1年前

    frog

    frog

    44問 • 1年前
    Nayan Kumar

    notes questions

    notes questions

    Nayan Kumar · 71問 · 1年前

    notes questions

    notes questions

    71問 • 1年前
    Nayan Kumar

    notes 1 electrolytic cell

    notes 1 electrolytic cell

    Nayan Kumar · 66問 · 1年前

    notes 1 electrolytic cell

    notes 1 electrolytic cell

    66問 • 1年前
    Nayan Kumar

    問題一覧

  • 1

    Physical state of a body defined with the help of

    velocity

  • 2

    When an object is in equilibrium state then

    it's net acceleration must be zero

  • 3

    When an object is at rest

    a large number of forces may be acting on it which balance each other

  • 4

    An athlete does not come to rest immediately after crossing the winning line due to the

    inertia of motion

  • 5

    Why does the horse rider horse forward when a horse had full gallup stop suddenly

    due to inertia of motion

  • 6

    A boy sitting on the top most berth in the compartment of a train which is just point to stop on a railway station drops an apple aiming at the open hand of his brother sitting vertically below his hands at a distance of about 2 m the Apple will fall

    slightly away from the hand of his brother in the direction of motion of the train

  • 7

    A force of constant magnitude acts in direction perpendicular to the motion of a particle then its

    speed is uniform

  • 8

    Friction force is derived from

    electromagnetic force

  • 9

    Which of the following is not fundamental force

    friction force

  • 10

    Which of the following is incorrect about normal reaction force

    parallel to contact surface

  • 11

    Which of the following is derived force

    tension force

  • 12

    which of the following is incorrect about weight force

    direction away from the centre of earth

  • 13

    2

  • 14

    Which of the following is incorrect about tension force

    if string is cut having some tension then tension force will not become zero instantaneously

  • 15

    Which of the following is incorrect

    if a streched spring spring is cut spring force will become zero instantaneously

  • 16

    Find net force on M2 block if M2 is in rest

    0

  • 17

    Find net force on block of mass m

    0

  • 18

    A block is stationary on a rough incline plane how many forces are acting on the block

    3

  • 19

    A book of mass 5 kg is placed on a table and it is pressed by 10 N force then normal force exerted by table on the book is

    59N

  • 20

    3 blocks with masses m,2m,3m are connected by strings as shown in the figure after an upward force F is applied on block m the masses move upward at constant speed v00 what is the net force on the mass of block 2 m

    0

  • 21

    t

  • 22

    Find contact force(normal) between 8 kg block and ground

    130N

  • 23

    T1 ,T2 ,&T3 respectively are

    40 ,70 ,150 N

  • 24

    Find contact force on ground by block

    t

  • 25

    If system is in equilibrium then find value of m

    8kg

  • 26

    m1=√3m2

  • 27

    Fine for applied by 5kg on 10kg

    100N

  • 28

    Fine for applied by 5kg on 4kg

    150N

  • 29

    48mg

  • 30

    5kg

  • 31

    Fine tension and angle both

    t

  • 32

    A uniform rope of mass m and length l is fixed at it upper end vertically from a rigid support then the tension in the rope at the distance x from bottom of the rod is

    mgx/l

  • 33

    3

  • 34

    Distance from bottom to A point is 3m

    3

  • 35

    60N

  • 36

    10N

  • 37

    Delete

    29.4N

  • 38

    3

  • 39

    2

  • 40

    3

  • 41

    2

  • 42

    2

  • 43

    1

  • 44

    2

  • 45

    4

  • 46

    25N

  • 47

    t

  • 48

    2

  • 49

    2

  • 50

    3

  • 51

    2

  • 52

    A=m & B =2m respectively

    2g upward & g downward

  • 53

    1

  • 54

    1

  • 55

    2

  • 56

    2

  • 57

    3

  • 58

    2

  • 59

    4

  • 60

    4

  • 61

    3

  • 62

    0

  • 63

    Normal reaction on 12 kg due to ground

    20N

  • 64

    Find mass m if system is at rest

    20kg

  • 65

    Find mass m system if system is in equilibrium

    40kg

  • 66

    Find reading in each spring

    25N & 25N

  • 67

    Balance force cannot accelerate the body but balance force can change shape and size of body

    true

  • 68

    Direction of force is along

    along the direction of change in momentum

  • 69

    -2mu

  • 70

    mu

  • 71

    Magnitude of change in momentum is

    √2mu

  • 72

    Calculate change in momentum

    mu

  • 73

    Calculate magnitude of change in momentum

    2mu

  • 74

    Calculate change in magnitude of momentum

    0

  • 75

    t

  • 76

    If object is moving with constant velocity then force on it must be zero(in variable mas system)

    false

  • 77

    4N

  • 78

    1:3

  • 79

    1

  • 80

    4√5 N-s

  • 81

    3

  • 82

    0.4m/s

  • 83

    2

  • 84

    2

  • 85

    6.67kg/s

  • 86

    2

  • 87

    2

  • 88

    3

  • 89

    3

  • 90

    If impulse varies with time t as(kg m/s)=20t²-40t the change in momentum is minimum at

    t=1s

  • 91

    A balloon has 2 g air. a small hole is pierced into it the air comes out with a velocity of 4 m/s if the balloons shrinks completely in 2.5 s the average force acting on the balloon is

    0.0032N

  • 92

    A bullet of mass 50 g is fired from a gun with initial velocity of 32 m/s if mass of the gun is 4 kg then calculate the recoil velocity of the gun

    0.4m/s

  • 93

    15î +4j

  • 94

    8N

  • 95

    Find T1 & T2. in the given diagram

    96N,56N

  • 96

    What will be the tension T1 &T2 in the given diagram

    36N, 60N

  • 97

    6N

  • 98

    10N

  • 99

    4

  • 100

    3