Under which conditions is work done
- A man supports a heavy load on his head with hands.
- A woman holds a pot of water
-
A boy climbs onto a table
- A man pushes against a stationary petrol tanker
The correct answer is: C
Explanation
Work is done when a force causes an object to move in the direction of that force. OPTION C. A boy climbs onto a table.
Work done (force is applied to lift himself).
when a boy climbs onto a table, he exerts a force to lift his body against gravity. As he moves upward, he is doing work because there is a displacement in the direction of the applied force. Thus, work is done in this case.
There is an explanation video available .