Question

Rahul takes 1 minute to rise a body to height of 1 metre and rohan takes 1/2 minute to the same height.Who uses more energy.

Answer 1

Answer:

Rohan

Step-by-step explanation:

WKT

F = ma       here a = g acceleration due to gravity

F = mg

Work done = F*x

x =ut +1/2 (m/F')t^2

Energy is inversely proportional to force

Force is directly Proportional to Energy(Work done)

So More Energy depends on less time for initiation

Rohan took less time => Applied more Force => Applied more Energy Energy

HOPE IT HELPS