- #1
ohheytai
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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 7 m. The astronaut moves around to the front of the crate and slows the crate down by pushing backwards with a force of 240 N, backing up through a distance of 6 m. After these two maneuvers, what is the speed of the crate?
W=F1*deltaR+F2*deltaR2+...
i can't find out how to get the speed with that? please help??
Homework Equations
W=F1*deltaR+F2*deltaR2+...
The Attempt at a Solution
i can't find out how to get the speed with that? please help??