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Margie’s 15 kg brother Luke sits on a sled. Margie pulls the sled across the floor...

Margie’s 15 kg brother Luke sits on a sled. Margie pulls the sled across the floor using a rope that is angled 20° above the floor. The tension is a constant 30 N and the coefficient of friction is 0.20. Use work and energy to find Luke’s speed after being pulled 3.0 m.

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