Physics, 29.01.2020 05:42 TheCampingStone

Asled and rider, gliding over horizontal, frictionless ice at 4.5 m/s, have a combined mass of 74 kg. the sled then slides over a rough spot in the ice, slowing down to 2.6 m/s. what impulse was delivered to the sled by the friction force from the rough spot?

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Asled and rider, gliding over horizontal, frictionless ice at 4.5 m/s, have a combined mass of 74 kg...