Answered

The girl whose mass is 65 kg runs 7.5 m high in 10 seconds. Find the power in watts expended by the girl.

Sagot :

Jchanda2001viz

Answer:

487.5

Explanation:

m=65

h=7.5

t=10

g=10

so potential energy=mgh=65*7.5*10=4875

power=PE/t

power=4875/10

power=487.5 watt