Self Studies

Laws of Motion ...

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  • Question 1
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    Newton's second law of motion is

  • Question 2
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    Which one of the following statemenls is not true about Newtons second law of motion

  • Question 3
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    The relation , cannot be deduced from Newton's second law, if

  • Question 4
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    A large force is acting on a body for a short time. The impulse imparted is equal to the change in:

  • Question 5
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    Which one of the following is not force?

  • Question 6
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    The motion of particle of mass m is given by y = ut + 1/2gt2. The force acting on the particle is

  • Question 7
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    A constant force acting on a body of mass of 5 kg change its speed from 5ms-1 to 10ms-1 in 10s without changing the direction of motion, 'The force acting on the body is

  • Question 8
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    A bullet of mass 40g moving with a speed of 90 ms-1 enters a heavy wooden block and is stopped after a distance of 60 cm. The average resistive force exerted by the block on the bullet is

  • Question 9
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    A body of mass 5kg starts from the origin with an initial velocity . If a constant force N acts on the body, the time in which the y -component of the velocity becomes zero is

  • Question 10
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    A body under the action of a force  acquiring an acceleration of 5ms−2. The mass of the body is 

  • Question 11
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    A constant retarding force of -50 N is applied to a body of mass 10 kg moving initially with a speed of 10 m s-1.The body comes to rest after

  • Question 12
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    A body of mass 0.4 kg starting at origin at t = 0 with a speed of 10 m s-1 in the positive x-axis direction is subjected to a constant F = 8 N towards negative x-axis. The position of the body after 25 s is 

  • Question 13
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    If the force on a rocket, moving with a velocity of 300 m s-1 is 210 N, then the rate of combustion of the fuel is

  • Question 14
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    A ball of mass m strikes a rigid wall with speed u and rebounds with the same speed. The impulse imparted to the ball by the wall is

  • Question 15
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    A batsman hits back a ball of mass 0,15 kg straight in the direction of the bowler without changing its initial speed of 12 m s-1. If the ball moves linearly, then the impulse imparted to the ball is

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