Question
A 125-kg sled is dragged by a team of dogs a distance of 2 km over a horizontal surface at a constant velocity. If the coefficient of friction between the sled and the snow is 0.15, find (a) the work done by the team of dogs and (b) the energy lost due to friction
Answers
Elena
a.
W=μmgs=0.15•125•9.8•2000=
b.
E=-W
W=μmgs=0.15•125•9.8•2000=
b.
E=-W