3. A uniform sphere has a mass of 8kg and a radius of 0.1m. It is rolling down a 20° incline without slipping. g ac = ? 20° a. What is the angular acceleration, a, of the sphere? b. What is the acceleration of the center of the sphere, ac? c. What is the friction force that the incline is putting on the sphere?

3. A uniform sphere has a mass of 8kg and a radius of 0.1m. It is rolling down a 20° incline without slipping. g ac = ? 20° a. What is the angular acceleration, a, of the sphere? b. What is the acceleration of the center of the sphere, ac? c. What is the friction force that the incline is putting on the sphere?