A 4.50 kg package slides 1.30 m down a long ramp that is inclined at 10.8° below the horizontal. The coefficient of kinetic friction between the package and the ramp is ?k= 0.310.
(a) Calculate the work done on the package by friction.
J
(b) Calculate the work done on the package by gravity.
J
(c) Calculate the work done on the package by the normal force.
J
(d) Calculate the total work done on the package.
J
(e) If the package has a speed of 2.4 m/s at the top of the ramp, what is its speed after sliding 1.30 m down the ramp?
m/s