Homework Help: physics

Posted by kelsey on Tuesday, September 23, 2008 at 11:44pm.

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:
size: N

c.) The net force on the crate is:
size: N
direction:

d.) How long would it take the crate to slide 3 m down the incline?
s

e.) If the crate were kept from sliding by a rope pulling parallel to the incline, what would the size of the tension be?
N

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