Question: . A 0.50 kg hall starting from position A which is 15 m above the ground, is projected down an incline as shown. Friction produces

. A 0.50 kg hall starting from position A which is 15 m above the ground, is projected down an incline as shown. Friction produces 10.1] of heat energv. The ball leaves the incline at position B travelling straight upward 'i liuin "-. and reaches a height of 13.0 m above the floor before falling ../ * down. What was the initial speed, v.3, at position A? Ignore air 9, resistance . m

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