Question

A man does 200j of work in 10 seconds and a boy does 100j of work in 4 seconds.
Who is delivering more power?
Find the ratio of the power delivered by the man to that by the boy.

Answer 1

man power=joule/time =200/10=20w
boy power=joule/time=100/4=25w

boy is delivering more power.....
Ratio=20/25
4/5
4:5

Answer 2

Answer:

1)The boy is delivering more power. 2)ratio=4:5

Explanation:

1)Power=work÷time

a)200/10=20 Watt

b)100/4=25 Watt

the boy is delivering more power

2) Ratio=20/25

=4/5

=4:5