posted by kelsey .
A crate of mass m (=40 kg) is placed at rest on a (frictionless) inclined plane, which has an angle (= 30o) above horizontal.
a.) The force of gravity on the crate is:
b.) The normal force on the crate is:
c.) The net force on the crate is:
d.) How long would it take the crate to slide 3 m down the incline?
e.) If the crate were kept from sliding by a rope pulling parallel to the incline, what would the size of the tension be?