(adsbygoogle = window.adsbygoogle || []).push({}); Physics 11 help??!!

1. The problem statement, all variables and given/known data

a car jack applies a force of 3000N to lift one side of a car a distance of 10 cm. in order to accomplish this the person using the jack needed to apply a force of 1200N to the handle moving it 30 cm. what is the jack's efficiency?

2. Relevant equations

eff = (mgh/f*d) x 100%

3. The attempt at a solution

idk where 2 start??

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# Homework Help: Physics 11 help?

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