Advertisements
Advertisements
Question
In the following case, work is done or not done and why?
A porter carrying load on his head and climbing stairs.
Short Answer
Advertisements
Solution
Work is done on the load. The porter exerts an upward force to support and raise it, and the load moves upward as he climbs the stairs. The force and displacement are in the same direction, so the work done against gravity is positive.
shaalaa.com
Is there an error in this question or solution?
