Asked by Ami

Starting from a pillar, you run a distance 200 m east (the + x-direction) at an average speed of 5.0 m/s, and then run a distance 280 m west at an average speed of 4.0 m/s to a post.


Q: Calculate your average velocity from pillar to post.
Answered by MathMate
Total distance = 200-280=-80
Total time = 200/5 + 280/4 seconds
= 110 seconds
Calculate the average velocity using
average velocity
= total distance / total time
Watch the sign of all quantities.
Answered by Anonymous
-0.727
Answered by Anonymous
Calculate the horizontal force required to accelerate a 20 kg grocery cart from rest to .50 m/s in 2 s.

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