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Ed rolls a ball forward across the floor. It hits a wall 12 meters away and rolls back along the same path. It stops 5 meters from the wall. What is the displacement of the ball? 17 meters forward 5 meters forward 7 meters forward 12 meters forward

Respuesta :

mfnright
I believe it's 7 meters positive (foward)
the displacement is 7 meters forward. 

it rolled forward 12 and then 5 back.

12 forward - 5 backward = 7

hope this helps :)

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