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Some gliders are launched from the ground by means of a winch, which rapidly reels in...

Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable attached to the glider. What average power must the winch supply in order to accelerate a 190-kg ultralight glider from rest to 30.0 m/s over a horizontal distance of 59.7 m? Assume that friction and air resistance are negligible, and that the tension in the winch cable is constant.

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