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Earn 100

 What is Atwood Machine ?

Important Questions on Laws of Motion

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A cricketer catches a ball of mass 150 g in 0.1 s moving with a speed of 20 m s-1, then he experiences a force of
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If a force of 5 N is acting on a body of mass 10 kg, then the acceleration produced is _____ m/s2.
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When external force acting on a body is _____, the linear momentum of body is constant.
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The engine of a truck produces an acceleration of 2 m s-2. If this truck pull another truck of same mass, the acceleration of the combination of trucks with engine of truck 1 on is
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When a striker hits the bottom of the pile of coins placed at the centre of a _____, only the lowest coin is removed.
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When a box or any other object covered with glass is placed in sunlight, visible as well as infrared _____ pass through the glass and are absorbed by the walls of the box.
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A force of 100 N acts on a body of 2 kg for 10 s. The change in momentum of the body is 
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Rate of change of momentum is also known as _____.
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Calculate the force required to impart a velocity of 30m/s in 12sec, if the mass of the car is 1500 kg _____.

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The rate of change of momentum is proportional to _____. (Force/ Energy)
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Newton's second law gives the measure of
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If the acceleration of a body is doubled while keeping its mass constant, the force becomes _____ (double/ half/ same as before).
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_____(Newton/Dyne) is the SI unit of force. 
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The average resisting force that must act on a 5 kg mass to reduce its speed from 65 cm s-1 to 0.15 cm s-1 with a time of 0.2 s is
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_____ (Newton/Pascal) is a unit of measurement of force.
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A body of mass 2 kg is acted upon by a force of 1Newton. Its acceleration is _____.
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Acceleration is inversely proportional to mass when _____ (Velocity / Force) is constant.
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For a constant force, acceleration of an object is inversely proportional to _____ of the object.
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Force is a product of acceleration and _____.(Mass/Velocity)
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The physical quantity which is equal to the rate of change of momentum is