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Answered

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playground slide
What type of surface is commonly observed in a
playground slide- rough or smooth? How does friction
acting on such type of surface affect the movement of a
child sliding on it?
running shoes
How does a pair of light rubber shoes help a runner run
fast on a race track? Explain how friction between the
shoe spikes and the ground affect the movement of the
runner?
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Sagot :

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Answer for the playground slides:Playgroud slides commonly have smooth surfaces smooth surface reduce friction to the child's body sliding on it and facilitates faster sliding movement which is enjoyable for the child.

Answer for the Pair of rubber shoes: a pair of light rubber shoes with enough thickness of spikes increases friction against the ground and prevents the runner from sliding along the race track the lighter weight of the suit also helps him or her swiftly

Explanation:

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