Physics, 23.04.2021 21:20 Emmaxox715
A 20 kg dog runs at + 2.5 m/s and collides with a 10 kg piece of on a frozen lake. After the collision we know that the 20 kg dog was moving - 2 m/s BACKWARDS, and the ice was moving the same way as the dog at - 5.0 m/s How fast AND in which direction was the piece of ice moving BEFORE the collision?
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A 20 kg dog runs at + 2.5 m/s and collides with a 10 kg piece of on a frozen lake. After the collisi...
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