(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A tractor pulls a wagon with a constant force of 700N at a constant speed of 20.0 km/h.

a) How much work is done by the tractor in 3.5min

b) What is the tractor's power output?

ANSWERS: a)8.16 x 10^6 J//b) 3888.8 watts

2. Relevant equation

P=W/t or P=Fv

3. The attempt at a solution

P=Fv

P=700N x 20.0

P=14000J

Pt=W

14000W x 210seconds=W

W=2940000J

I've been trying for over an hour now and I just can't get the answer. Any help will be greatly appreciated.

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# Homework Help: Work and Power problem

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