Physics, 30.10.2020 18:10 khalilattalah

A 20 kg sled is coasting with constant velocity at 5 m/s over perfectly smooth, level ice. It enters a rough stretch of ice 20 m long in which the force of friction is 8 N. With what speed does the sled emerge from the rough stretch

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A 20 kg sled is coasting with constant velocity at 5 m/s over perfectly smooth, level ice. It enters...