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A ball rolled along a horizontal surface maintains a constant speed because
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2 votes
A ball rolled along a horizontal surface maintains a constant speed because

User Ederollora
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2 Answers

7 votes
Gravity is in the vertical direction, so there's no horizontal force on the ball to rob kinetic energy from it. (except friction with the floor and the air ...)
User Jay Stramel
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4 votes
There is no friction witch is impossible but good question.
User Zaw
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