Question

You did 200 joules of work lifting a 150-newton backpack. How high did you lift the backpack?

Answer 1

Explanation:

W= 200J

work done here is in terms of the potential energy(Ep)

Ep=mgh----> 1

w=mg

so, F=mg

therefore mg=150N

Ep=150 × h----> from 1

200=150×h

h= 200/150

=1.33m

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