1. If your running down the side walk and stopped quikly, you are able to atop bacause of the ______ between your shoes and the cemented side walk.
2.The ball rolled on the grassy surface of the park and suddenly stopped.Explain how friction affect the motion of the ball ___________
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Answers & Comments
Answer:
1. friction
2. the surface where the ball stop is grassy that's why it has greater friction to stop the ball from rolling.