Use the work–energy theorem to solve each of these problems.You can use Newton’s laws to check your answers. (a) A skiermoving at 5.00 m/s encounters a long, rough horizontal patch of snowhaving a coefficient of kinetic friction of 0.220 with her skis. How fardoes she travel on this patch before stopping? (b) Suppose the roughpatch in part (a) was only 2.90 m long. How fast would the skier bemoving when she reached the end of the patch? (c) At the base of a frictionlessicy hill that rises at 25.0° above the horizontal, a toboggan hasa speed of 12.0 m>s toward the hill. How high vertically above the basewill it go before stopping?

Use the work–energy theorem to solve each of these problems.You can use Newton’s laws to check your answers. (a) A skiermoving at 5.00 m/s encounters a long, rough horizontal patch of snowhaving a coefficient of kinetic friction of 0.220 with her skis. How fardoes she travel on this patch before stopping? (b) Suppose the roughpatch in part (a) was only 2.90 m long. How fast would the skier bemoving when she reached the end of the patch? (c) At the base of a frictionlessicy hill that rises at 25.0° above the horizontal, a toboggan hasa speed of 12.0 m>s toward the hill. How high vertically above the basewill it go before stopping?

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