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A 11.6 kg runaway grocery cart runs into a spring with spring constant 295 N/m and...

A 11.6 kg runaway grocery cart runs into a spring with spring constant 295 N/m and compresses it by 51.6 cm . What was the speed of the cart just before it hit the spring? What is the total energy stored in the spring after the collision? What is the maximum force exerted on the cart by the spring during the collision?

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