Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

Load lifted to the effort applied
Output to the input
Distance moved by effort to the distance moved by load
All of these

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:

The change in momentum suffered by rubber ball is more than the lead ball
The change in momentum suffered by rubber ball is less than the lead ball
Both the balls undergo an equal change in momentum
None of these

ANSWER DOWNLOAD EXAMIANS APP