A body of mass 40 kg climbs up the stairs and reaches the roof at a height of 8m in 5 sec Calculate i. the force of gravity acting upon the body ii. the work is done by him against the force of gravity iii. The power spent by the boy.
Answers
Answered by
3
Answer:
(i)
Force of gravity acting on the boy = mg
= 40 * 10
= 400 N
(ii)
Work done by him = mgh
= 40 * 10 * 0.08
= 32 J
(iii)
Power = Work / Time
= 32 / 5
= 6.4 Watt
Answered by
5
Hopefully it helps you
Mark me as brainliest
Mark me as brainliest
Attachments:
Similar questions