The Student Room Group

Doing Work, Potential Energy and Power

A rower exercises with a power of 200, W. Her boat (containing 7 other equally-strong rowers) travels at a speed of 9.0m/s. How much energy will the crew have converted in 20s?
(edited 3 years ago)
Reply 1
The 8 people are equally strong so their combined power is 8x200= 1600W.
E=Pt = 1600x20= 32000J = 32kJ
... I'm pretty sure.
I don't think the speed is relevant.
Reply 2
The 8 people are equally strong so their combined power is 8x200= 1600W.
E=Pt = 1600x20= 32000J = 32kJ
... I'm pretty sure.
I don't think the speed is relevant.

Quick Reply