physics

A 62.0-kg baseball player slides 3.40 m from third base w/ a speed of 4.35 m/s. If the player comes to rest in third base , (a) how much work was done on the player by friction? (b) what was the coefficient of the kinetic friction between the player and the ground?

  1. 👍 0
  2. 👎 0
  3. 👁 121
asked by Tina
  1. (a) The same as his initial kinetic energy

    (b) The friction force F is
    (Initial kinetic energy)/(sliding distance)
    F = (1/2) M V^2/X

    Divide that by the player's weight (M g) to get the kinetic friction coefficient.

    mu,k = F/(M*g) = V^2/(2 g X)

    1. 👍 0
    2. 👎 0
    posted by drwls
  2. After plugging in the values, I obtained the following results:

    (a) W = K = -587J
    (b) muk = 0.285

    1. 👍 0
    2. 👎 0
    posted by John

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 66-kg baseball player slides into third base. He starts his slide at a speed of 4.3 m/s and his speed is zero just as he reaches the base. If the coefficient of friction between his clothes and the surface of the baseball

    asked by mathew on February 8, 2015
  2. physics

    A baseball player slides into third base with an initial speed of 7.75 m/s. If the coefficient of kinetic friction between the player and the ground is 0.45, how far does the player slide before coming to rest?

    asked by john on July 12, 2015
  3. Physics

    A baseball player slides into third base with an initial speed of 3.8m/s. If the coefficient of kinetic friction between the player and the ground is 0.40, how far does the player slide before coming to rest?

    asked by Marissa on February 11, 2015
  4. Physics

    A 96.3-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk = 0.619. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.00

    asked by Jamie on August 15, 2015
  5. physics

    A 95.9-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is ìk = 0.554. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.63

    asked by tcc on July 8, 2013
  6. PHYSICS

    A 103-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk = 0.555. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.05

    asked by Anonymous on October 4, 2015
  7. Physics

    A baseball player slides into third base with an initial speed of 8.45 m/s. If the coefficient of kinetic friction between the player and the ground is 0.40, how far does the player slide before coming to rest? How do I begin to

    asked by Robert C on February 14, 2010
  8. physics 1

    A 103-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is ìk = 0.729. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.27

    asked by Anonymous on February 18, 2014
  9. Physics

    A baseball player stealing second base runs at 7.2 m/s . If he slides the last 3.8 m , slowing to a stop at the base, what's the coefficient of kinetic friction between player and ground?

    asked by Emma on October 8, 2016
  10. Physics

    An 81 kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is .49. a) what is the magnitude of the frictional force? b) If the player comes to a rest after 1/6s, what

    asked by Anonymous on January 16, 2013

More Similar Questions