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## Homework Statement

Estimate (to the nearest order of magnitude) how much work I must do to pick up a 12 kg box to a height of 1.3m. Does it mattert how I pick up the box (fast or slow, straight up or along a curvy path, etc.)?

## Homework Equations

W=Fcos(x)S

## The Attempt at a Solution

9.8(m/s^2)*12 kg = 117.6N

W=Fs

W=Fcos(angle)s

s=1.3m

If the box was lifted straight up, the angle is zero.

W=117.6cos(90)(1.3m)

W=0

It does not matter if you pick the box up slow or fast.

I'm confused at the curvy part of the question. If I pick up the box at an angle, is it always negative since I'm doing work against gravity?