A 714 skier starts from rest and slides down a 330 -m, Ask an Expert

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A 71.4 skier starts from rest and slides down a 33.0 -m frictionless slope that is inclined at an angle of 18 degrees with the horizontal. Ignore air resistance.

a.) Calculate the work done by gravity on the skier and the work done by normal force on the skier.

Wgravity = ____kJ

Wnormal =_____kJ

b.) If the slope is not frictionless so that the skier has a final velocity of 11.3 m/s, calculate the work done by gravity, the work done by normal force, the work done by friction, the force of friction (assuming it is constant), and the coefficient of kinetic friction.

Wgravity =____kJ

Wnormal =____kJ

Wfriction =____kJ

Ffriction =____kJ

uk = ____

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