1. A steady horizontal force F of magnitude 100 N is applied at the axle of a solid disk as shown. The disk has mass of 5.0 kg and a diameter of 0.40m. Calculate the linear speed of the center of the disk after it has moved 10m. (moment of inertia is 1/2 Mr^2) I have the answer as 16 m/s.
2. A solid sphere of a radius 0.2 m is released from rest from a height of 2.0 m and rolls down the incline as shown. If the initial speed Vi= 5 m/s, calculate the speed (Vf) of the sphere when it reaches the horizontal surface. (moment of inertia of a sphere is (2/5) Mr^2)
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