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Gayle runs at a speed of 4.25 m/s and dives on a sled, initially at rest...

Gayle runs at a speed of 4.25 m/s and dives on a sled, initially at rest on the top of a frictionless snow covered hill. After she has descended a vertical distance of 5.4 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. Gayle's mass is 45 kg, the sled has a mass of 5 kg, and her brother has a mass of 30 kg. What is the speed of the sled right after Gayle hops onboard? Incorrect: Your answer is incorrect. Your response differs from the correct answer by more than 100%. m/s What is the speed of the sled right after her brother hops onboard? m/s What is their speed at the bottom of the hill if the total vertical drop is 19 m? m/s

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