An 85.1 kg base runner begins his slide into second base, Ask an Expert

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Q. An 85.1 kg base runner begins his slide into second base while moving at a speed of 5.9 m/s. The coefficient of kinetic friction between his clothes and ground is 0.68. He slides so that he comes to rest just as he reaches the base.

Q. Write the statement of energy conservation for this system, and differentiate it to obtain an equation analogous to the equation md^2x/dt^2=-kx

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