Two girls of same mass run up a staircase in 10s
and 15s respectively. The ratio of the of the
powers developed by them is
Answers
Answered by
1
Answer:
10/15
= 2/3
therefore 2:3
Answered by
1
Answer:
1) GIVEN
2girls run up a stair case in 10s and 15s
2) TO FIND
ratio of powers developed by the girls
3) CONCEPT
power is defined as the instaneous rate of doing work.
power=work/time
CALCULATION
by 1st girl
power=work/time
power=m×g×h/10
power=mgh/10. 1st
by 2nd girl
power=mgh/15. 2nd
ratio=3:2
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