Applied Mechanics and Graphic Statics
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

1.0
0.25
0.75
0.50

ANSWER DOWNLOAD EXAMIANS APP

Applied Mechanics and Graphic Statics
Free body diagram is an

None of these
Isolated joint with only body forces acting on it
Isolated joint with internal forces acting on it
Isolated joint with all the forces, internal as well as external, acting on it

ANSWER DOWNLOAD EXAMIANS APP