A child slides down a snowcovered slope on a sled. At the top of the slope, her mother gives her a push to start her off with a speed of 0.85m/s.0.85m/s. The frictional force acting on the sled is onefifth of the combined weight of the child and the sled. If she travels for a distance of 27.0m27.0m and her speed at the bottom is 4.05m/s,4.05m/s, calculate the angle that the slope makes with thehorizontal.

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