A snowboarder of mass 89 kg sides down the trail shown in the figure below. The

Question

A snowboarder of mass 89 kg sides down the trail shown in the figure below.  The first part of the trail is a ramp that makes an angle of 19 degree with the horizontal , and the final portion of the trail is flat.  Find the work done by gravity on t snowboarder as the t ravels from the beginning to the end of this trail.  For the figure use h = 49m.

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A snowboarder of mass 89 kg sides down the trail shown in the figure below. The first part of the trail is a ramp that makes an angle of 19 degree with the horizontal , and the final portion of the trail is flat. Find the work done by gravity on t snowboarder as the t ravels from the beginning to the end of this trail. For the figure use h = 49m.

Explanation / Answer

W = mgh = 89 x 9.8 x 49 = 42737.8 J

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