Physics Practice Problems Springs & Elastic Potential Energy Practice Problems Solution: An 80.0-kg man jumps from a height of 2.50 m onto ...

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Solution: An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs. As the springs compress, he pushes the platform down a maximum distance of 0.240 m below its initial position, and then it rebounds. The platform and springs have negligible mass.What is the mans speed at the instant he depresses the platform 0.120 m?If the man just steps gently onto the platform, what maximum distance would he push it down?

Problem

An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs. As the springs compress, he pushes the platform down a maximum distance of 0.240 m below its initial position, and then it rebounds. The platform and springs have negligible mass.

What is the mans speed at the instant he depresses the platform 0.120 m?

If the man just steps gently onto the platform, what maximum distance would he push it down?