Q5.8 A block rests on an inclined plane with enough friction to prevent it from sliding down. To start the block moving, is it easier to push it up the plane or down the plane? Why?

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Jean KeelingLv2

30 Jul 2018

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A block is given an initial push upwards on an inclined plane. The block slides up the plane to some point. It then reverses direction and slides down to the starting point. The time for the downward slide is exactly twice the time for the upward slide. The plane is inclined at an angle of 20.80 degrees above the horizontal. What is the coefficient of kinetic friction between the block and the plane?

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