ICSE Class 10 Physics 2014 Solved Paper
© examsnet.com
Question : 30
Total: 66
A man having a box on his head, climbs up a slope and another man having an identical box walks the same distance on a levelled road. Who does more work against the force of gravity and why?
Solution:
Man climbs up a slope does more work against the force of gravity because potential energy is directly related to the height.
As, P.E. = work done = F × S
= m g × h
while the work done by the man walking on a levelled road is zero.
As,
while the work done by the man walking on a levelled road is zero.
© examsnet.com
Go to Question: