The moment of inertia of a uniform solid sphere is given by - mr . Such a sphere of radius r= 1.0 cm and mass m= 50.0g) is placed at a top of a ramp length d=1.0m and an angle 0 = 20, as shown. The sphere is released from rest at the top of the ramp. 8 913 a) [10 points] What will be it's speed after rolling to the bottom of the ramp? b) [5 points] What is the angular momentum of the sphere at the bottom of the ramp