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Q8. A sphere rolls without slipping up a smooth plane inclined 25° above the horizontal with an initial velocity of B mis.

Calculate EACH of the following:

(a) the maximum linear displacement of the sphere up the plane. (10)

(b) the time taken for the sphere to roll 5 m back down the plane from this point. (6)

Note: Moment of Inertia for o sphere=2/5mr²