A 12.00kg runaway grocery cart runs into a spring with, Ask an Expert

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Q. A 3-kg dog stands on a 21 kg flatboat at distance D = 6.10 m from the shore. It walks 2.8 m along the boat toward shore and then stops. Assume no friction between the boat and the water, find how far the dog is then from shore.

Q. A 12.00kg runaway grocery cart runs into a spring with spring constant 260-N/m and compresses it by 65 cm. What was the speed of the cart just before it hit spring?

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