Physics

Problem

60\,\text{kg}

student jumps from rest off a

2.0\,\text{m}

-high platform onto a thick foam landing mat. The mat compresses

0.30\,\text{m}

while bringing the student to rest. Assuming the force exerted by the mat on the student is constant during the compression, what is the magnitude of that average force? a)

7.8\times10^{3}\,\text{N}

4.5\times10^{3}\,\text{N}

3.9\times10^{3}\,\text{N}

2.0\times10^{3}\,\text{N}

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