Physics, 23.04.2021 01:00 haileyhale5
Kevin has a mass of 71.7-kg and is skating with in-line skates. He sees his 22.4-kg younger brother up ahead standing on the sidewalk, with his back turned. Coming up from behind, he grabs his brother and rolls off at a speed of 2.05 m/s. Ignoring friction, find Kevin's speed just before he grabbed his brother.
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Kevin has a mass of 71.7-kg and is skating with in-line skates. He sees his 22.4-kg younger brother...
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