How common are elastic collisions in the real world?

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Determine the maximum r-value of the polar equation r =3+3 cos 0

Energy transformations that involve one transformation from one type of energy to another are called transformations.