A 63-kg skier (with gear) goes down a 500 meter slope which makes a 16 degree angle with horizontal. They start with zero

Question

A 63-kg skier (with gear) goes down a 500 meter slope which makes a 16 degree angle
with horizontal. They start with zero velocity.
a. What is the gravitational potential energy the skier begins with? (500 meters is
not the height)
b. If there is no friction or air resistance, what would their velocity be when they
reach the bottom of the hill?
C. If friction and drag together remove energy from the skier by applying 50 N of
force during the entire trip, how much energy is removed?
d. In this case with friction/drag in part c, what would the skier's velocity be when
they reach the bottom of the hill?

Kunduz · Accepted Answer

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