question archive A roller-coaster car is moving at 15 m/s along a straight horizontal track
Subject:PhysicsPrice:3.87 Bought7
A roller-coaster car is moving at 15 m/s along a straight horizontal track. When it reaches point A, its speed decreases to 10 m/s. What is the distance between the ground level and the roller-coaster car at point A?
4.4 m
6.4 m
5.7 m
8.0 m
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