Advertisements
Advertisements
प्रश्न
In the following case, work is done or not done and why?
A porter carrying load on his head and climbing stairs.
लघु उत्तर
Advertisements
उत्तर
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
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
