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Physics

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An 81 kg baseball player slides into second base. The coefficiant of kintetic friction between the player and the ground is 0.49. a) What is the magnitude of the frictional force? b) If the player comes to rest at 1.6 s, what was his intial velocity?

  • Physics - ,

    frictionforce= weight*mu= mg*mu

    vf=vi-at
    solve for vi. Remember F=ma, so a=F/m

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