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AE-JE (ME) || Engineering Mechanics Quiz - 4
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Question 1
A body of mass 5 kg accelerates at a constant rate of 2 m/s2 on a smooth horizontal surface due to external force acting at 30o with horizontal. The magnitude of the force is
Question 2
Which of the following is the unit of energy?
Question 3
If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and the floor is equal to:
Question 4
In case of a nuclear reactor, the neutrons moving in random directions in reactor collide with each other. If the another particle is at rest, determine the velocity of the particle that struck after collision. Take u1 = 2.2 km/hr, mass of neutron = 1.6726 x 10-27 kg
Question 5
A body at rest breaks into two pieces of equal masses. The parts will move
Question 6
From a point, on a smooth floor, a toy ball is shot to hit a wall. The ball then returns back to the point of projection. Find the coefficient of restitution between the ball and the wall if the time taken by the ball in returning is thrice the time taken in reaching the wall
Question 7
The coefficient of restitution is the ratio of _________.
Question 8
A contraption was to be made for a technical event. In which a ball bearing 500 g starts from a rest and it is to strike another ball bearing 50 cm below it. The ball bearing slides down a tube twice its diameter and is assumed to be frictionless. Find the velocity with which it will strike the ball. Take e = 0.6
Question 9
A ball with a mass of 0.5 kg bounces off of a wall. Initially, it traveled horizontally to the right, toward the wall at 30.0 m/s. In then bounces, and travels horizontally to the left, away from the wall at 10.0 m/s. What is the impulse of this collision between the ball and the wall? (Assume left direction as the positive and right direction as the negative)
Question 10
The displacement of a particle is given by x = (t – 2)2 where x is in metres and t in seconds. find the velocity of the particle in first 4 seconds is
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Nov 23AE & JE Exams
