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

A crate with a mass of 120 kg glides through a space station with a speed of 2.5 m/s. An astronaut speeds it up by pushing on it from behind with a force of 250 N, continually pushing with this force through a distance of 5 m. The astronaut moves around to the front of the crate and slows the crate down by pushing backwards with a force of 220 N, backing up through a distance of 4 m.

What is the total amount of work done by the astronaut in these two maneuvers? (I correctly calculated this to be W = 370J)

After these two maneuvers, what is the speed of the crate?

2. Relevant equations

Kf - Ki = work

3. The attempt at a solution

I found the work, but need the speed. I just can't figure out how to pull the velocity out of that correctly

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# Homework Help: Work (W) Problem

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