A boy of mass 50kg can climb a mountain of height 30 m in 5 minute. what will be his power? 300W
5W
3000W
50W
Answers
Answered by
0
Total question ⤵️
A man whose mass is 50 kg climbs up 30 steps of a stair in 30 s. If each step is 20 cm high, calculate the power used in climbing stairs.
Answer ⤵️
Given that ,
A man whose mass is 50kg climbs up 30 steps of a stair in 30s
each step is 20 cm high
Height at 30 steps , h=30×0.2=6 m
Change in potential energy , =mgh=50×10×6=3000 J
So, Work done by the man , W=3000 J
Power used , P=
t
W
=
30
3000
=100 W ✔️✔️
Answered by
4
Answer:
50W is the answer so please rate this question
Similar questions