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OpenStudy (anonymous):
A ball is rolled up a ramp with an initial velocity of 5 m/s [U]. 4 seconds later, it is moving down the ramp with a velocity of 3 m/s [D]. What is the acceleration of the ball and at when was the ball stationary?
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OpenStudy (turingtest):
welcome to Open Study please post this in the physics section this is the math section thanks
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