kiarashae kiarashae

01-03-2017
Physics

contestada

A ball is rolled uphill a distance of 12 meters before it slows, stops, and begins to roll back. The ball rolls downhill 20 meters before coming to rest against a tree. What is the magnitude of the ball’s displacement________ m

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01-03-2017

The ball rolled a distance of
d = 12m + 20m.
But the change of position is
x = + 12m - 20m

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