Question:
An weight W = 63.9 N is attached to the free end of a light string wrapped around a reel of radius R = 0.126 m and mass m = 6.16 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center. The suspended object is released at height h = 5.34 m above the floor.
Find the speed (in m/s) with which the object hits the floor
2)A 67.3 kg person sits on a 3.93 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.36 cm in diameter. Calculate the pressure exerted on the floor by each leg of the chair, assuming the weight is evenly distributed