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A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of restitution (e) will be

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Questions featured in Previous Year Papers on Mechanics

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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 37
A particle of mass m is projected with a velocity v=kVe (k<1) from the surface of the earth (Ve= escape velocity). The maximum height above the surface reached by the particle is___
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 9
A particle moving in a circle of radius R with a uniform speed takes a time T to complete one revolution. If this particle were projected with the same speed at an angle  θ to the horizontal, the maximum height attained by it equals 4R. The angle of projection θ is then given by___
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 2
If force [F], acceleration [A] and time [T] are chosen as the fundamental physical quantities. Find the dimensions of energy.
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 1
A screw gauge gives the following readings when used to measure the diameter of a wire
Main scale reading : 0 mm
Circular scale reading : 52 divisions
Given that 1 mm on main scale corresponds to 100 divisions on the circular scale. The diameter of the wire from the above data is:
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 30
Water falls from a height of 60 m at the rate of 15 kg s-1 to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine? g=10 m s-2)
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 45
The velocity of a small ball of mass M and density ρ, when dropped in a container filled with glycerine becomes constant after some time. If the density of glycerine is ρ2, then the viscous force acting on the ball will be:
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 29
A particle is released from height S from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The height from the surface of the earth and the speed of the particle at that instant are respectively___
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NEET Physics Express>Chapter 1 - Mechanics>Exercise>Q 8
A small block slides down on a smooth inclined plane, starting from rest at time t=0. Let Sn be the distance travelled by the block in the interval t=n-1 to t=n. Then, the ratio snsn+1 is: