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Mechanical Engineering Objective Questions { Engineering Mechanics }



155. Rate of change of momentum takes place in the direction
Discussion

156. If the momentum of a given body is doubled, its kinetic energy will
Discussion

157. 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
Discussion

158. A ball moving with a velocity of 5 m per sec impinges on a fixed plane at an angle of 45°, its direction after impact is equally inclined to the line of impact. If coefficient of restitution is 0.5, the velocity of the ball after impact will be
Discussion

159. Pick up the correct statement from the following : A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall falls down
Discussion

160. Two pieces of steel and brass weighing 2 kg and 1 kg fall freely under action of gravity from a tower. After a distance, the following will be identical
Discussion

161. If a solid and a hollow sphere of the same mass are allowed to roll down an inclined plane simultaneously, then
Discussion

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