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ISRO 2018 Engineering Mechanics Booster Quiz 2

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Question 1

A solid block ‘A’ weighing ‘Q’ kg is resting on a flat floor. A smooth cylinder ‘B’ weighing ‘P’ kg is placed between the solid A and the vertical wall as shown in fig. The friction between the cylinder, wall and the block A is negligible. The co-efficient of friction between the block A and floor is . The minimum weight P required to disturb the block A is

Question 2

A car crashes against a wall. The initial velocity at collision is 15m/sec and an the velocity after collision is 2.6 m/sec in the opposite direction. The mass of the car is 1500 kg. what is the average force exerted on the automobile bumper if collision lasts for 0.15 seconds

Question 3

For two bodies having direct impact, coefficient of restitution is given by ______.

Question 4

If two bodies one light and other heavy have equal kinetic energies, which one has a greater momentum

Question 5

If a number of forces act on a rigid body, each force may be replaced bv an equal and parallel force acting through a fixed point, together with a couple. For the rigid body to be in equilibrium

Question 6

Two blocks with masses M and m are in contact with each other and are resting on a horizontal frictionless floor. When horizontal force is applied to the heavier, the blocks accelerate to the right. The force between the two blocks are

Question 7

Two particles with masses in the ratio 1 : 4 are moving with equal kinetic energies. The magnitude of their linear momentums will conform to the ratio

Question 8

A car moving with uniform acceleration covers 450 m in a 5 second interval, and covers 700 m in the next 5 second interval. The acceleration of the car is
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