A crate of mass 10.3 kg is pulled up a rough incline with an
initial speed of 1.43 m/s. The pulling force is 93.0 N parallel to
the incline, which makes an angle of 19.4° with the horizontal. The
coefficient of kinetic friction is 0.400, and the crate is pulled
4.97 m.
(a) How much work is done by the gravitational force on the
crate?
J
(b) Determine the increase in internal energy (related to thermal
energy, having the opposite...