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the carts. 16. A polar explorer is using a rope to pull a 30-kg penguin on a 10-kg sled across a horizontal field of snow. The net force on the penguin/sled system is 25 N. If the sled/penguin system begins at rest, how far will the polar explorer have pulled the penguin and sled, when the velocity has reached 1.5 m/s? ( A) a = 25 N V2 = Vi + 2ad 40 kg 1.5m/s = Om/s + 2 ( 0.625 m/s?) d a = 0. 625 m / 52 1.5m/s = 1.25m/s'd - 2 1.25 m / 52 1. 25 m/ s ? d = 1.2 meters 5 13