1.Use the work-energy theorem to calculate the minimum speed, , that the member must impart to the box at the bottom of the incline so that it will reach the skier.
2.A bowling ball is dropped from a boat so that it strikes the surface of a lake with a speed of 25 ft/s. Assuming the ball experiences a downward acceleration of a = 10-9v2 when in the water, determine the velocity of the ball when it strikes the bottom of the lake.
3.What is the drag force on a cylinder whose L/D ratio is 10, when its axis is parallel to the direction of stream flow ?