A 87.2-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk = 0.502. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.40 s, what is his initial speed?

If the coefficient of kinetic friction between the player and the ground is 0.47, how far does the player slide before coming to rest?

A 70 kg baseball player running at 3 m/s slides into home plate, coming to a stop after sliding 3.0 m. The force of friction between the player and the ground = ? (use 3 significant figures and don't include the unit)

  
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