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Posted by on Monday, September 26, 2011 at 2:26pm.

A baseball pitcher can throw a baseball at a velocity of 44.5 m/s. If the mass of the ball is 0.12 kg and the pitcher has it in his hand over a distance of 1.79 m, what is the average force exerted by the pitcher on the ball?

  • Physics - , Tuesday, September 27, 2011 at 7:53pm

    a = (Vf^2 - (Vo)^2) / 2d,
    a = ((45)^2 - 0) / 3.58 = 565.6m/s^2.

    F = ma = 0.12 * 565.6 = 67.9N.

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