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ISRO Mechanical Engg.: Engineering Mechanics Booster Quiz 3

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Question 1

Two objects P and Q are traveling horizontally with velocity of 8 m/sec and 6 m/s from left to right. They are separated by a distance of 15 m. The mass of the objects are 3 kg and 5 kg. If the coefficient of restitution is 0.7 what is the velocity (m/s) of P and Q after impact and when (seconds) and where (meters) will they impact with respect to initial positioning of Q. The corresponding answers are respectively.

Question 2

A two member truss ABC is configured as shown in figure. The force in the member AB is

Question 3

In 1s, a particle goes from point A to point B, moving in a semicircle (as shown in figure). The magnitude of the average velocity is

Question 4

Determine for the system in below Fig., when X, the downward displacement of the block, measured from the system’s equilibrium position, is used as the generalized coordinate. Take as the of the wheel.