A 20- N horizontal force pushes an object along a rough floor so that the object moves with a consta

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A 20- N horizontal force pushes an object along a rough floor so that the object moves with a constant velocity of 6.0 m/s. How much power does this force deliver to the object? A) 0 W B) 160 W C) 5.0 W D) 20 W E) 120W .
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