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Q. A person exerts a horizontal force of F = 180 N in the test apparatus shown in the drawing. (h = 0.35 m.) Find the horizontal force M that his flexor muscle exerts on his forearm.

Q. A child goes down a playground slide with an acceleration of 1.40. Find the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 31.0 below the horizontal.

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