Acyclist starts from rest and coasts down a 4.0∘ hill. the mass of the cyclist plus bicycle is 85 kg. ignore air resistance and friction.

a) after the cyclist has traveled 180 m , what was the net work done by gravity on the cyclist?

b) how fast is the cyclist going? in m/s

explain if

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?