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A hollow sphere with v0 = 0 starts rolling down a 3,0m long, 20° incline. a)...

A hollow sphere with v0 = 0 starts rolling down a 3,0m long, 20° incline.

a) Draw a figure showing the forces acting on the sphere and calculate the sphere's acceleration.

b) Calculate the velocity of the ball at the bottom of the incline.

c) What would the sphere's speed at the end of the incline be without friction? Shortly describe the result.

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