A crate of mass 14.0 kg is pulled upa rough incline with an initial speed of 1.50 m/s. The pullingforce is 100 N parallel to the incline, which makes an angle of18.0° with the horizontal. Thecoefficient of kinetic friction is 0.400, and the crate is pulled4.55 m.
(a) How much work is done by gravity?
J
(b) How much mechanical energy is lost due to friction?
J
(c) How much work is done by the 100 Nforce?
J
(d) What is the change in kinetic energy of the crate?
J
(e) What is the speed of the crate after being pulled 4.55 m?
m/s