Question: m) ? A child on a sled with a total mass of 53.0 kg slides down an icy hillside with negligible friction. The sled starts

m) ? A child on a sled with a total mass of 53.0 kg slides down an icy hillside with negligible friction. The sled starts from rest and has a speed of 3.20 m/s at the bottom. What is the height of the hill (in m

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