Q. A dolphin leaps out of the water at an angle of 42.7 ° above the horizontal. The horizontal component of the dolphin's velocity is 9.10 m/s. Find the magnitude of the vertical component of the velocity.
Q. A 91kg water skier floating in a lake is pulled from rest to a speed of 12 m/s in a distance of 25 m.What is the net force exerted on the skier, assuming his acceleration is constant?