A sled with mass 30 kg slides 40 m down a hill angled at 20 degrees...
A sled with mass 30 kg slides 40 m down a hill angled at 20 degrees to the horizontal. The coefficient of friction between the sled and the ground is 0.2.
a) How much work does gravity do on the sled?
b) How much work does the normal force do on the sled?
c) How much work does friction do on the sled?
d) What is the net work done on the sled
e) if the sled begins at rest at the top of the hill, how fast is it moving when it reaches the bottom of the hill 40 m later?
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A sled with mass 30 kg slides 40 m down a hill angled at 20
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