179. assignment (work and energy)

A bicyclist starting from rest applies a force of F = 109 N to ride his bicycle across flat ground for a distance of d = 180 m before encountering a hill making an angle of θ = 28 degrees with respect to the horizontal. The bicycle and rider have a mass of m = 111 kg combined.

Part (a) How much work, W in joules, did the rider do before reaching the hill?
Numeric   : A numeric value is expected and not an expression.
W = __________________________________________


Part (b) What is the bicycle's speed, v in m/s, just before the hill? Assume there is no kinetic friction between the bicycle and the ground.
Numeric   : A numeric value is expected and not an expression.
v = __________________________________________


Part (c) If the cyclist starts coasting at the bottom of the hill, what distance, di in meters, does the bike travel up the incline?
Numeric   : A numeric value is expected and not an expression.
di = __________________________________________

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