Two toboggans (with riders) of the same mass are at rest on top of a steep hill. As they slide down the hill, toboggan A takes a straight path down the slope while toboggan B winds back and forth along a more gently sloping path. Toboggan A makes the trip in one fifth the time of toboggan B.

a).Compare the work done by gravity on each toboggan.

W_{g, A}

W_{g, B}

=

b).Compare the average power delivered by gravity on the two toboggans.

P_{g, A}

P_{g, B}