Question 1
In a game of shuffleboard (played on a horizontal surface), a puck is given an initial speed of 6.0 m/s. It slides a distance of 9.0 m before coming to rest. What is the coefficient of kinetic friction between the puck and the surface?
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0.20
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0.18
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0.15
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0.13
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0.27
Question 2
In order to jump off the floor, the floor must exert a force on you
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in the direction of and equal to your weight.
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opposite to and equal to your weight.
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in the direction of and less than your weight.
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opposite to and less than your weight.
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opposite to and greater than your weight.