Determine the
average mechanical power must be delivered by the muscles of a 70kg
mountain climber who climbs a summit of height 325 m in 95.0 min.Note: Due
to inefficiencies in converting chemical energy to mechanical energy,
the amount calculated here is only a fraction of the power that must
be produced by the climber’s body. (
)
选项：

A:39.1W
B:54.6W
C:25.5W
D:67.0W
E:88.4W