# Mechanics

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During a soccer game a ball (of mass 0.425 kg), which is initially at rest, is kicked by one of the players. The ball moves off at a speed of 26 m/s. Given that the impact lasted for 8.0 ms, what was the average force exerted on the ball? Show the solution and answer.

• Mechanics -

a = (V-Vo)/t = (0-26)/0.008s = 3250m/s^2

F = m*a = 0.425 * 3250 = 1381.3 N.

• Mechanics -

Correction: a = (26-0)/0.008 = 3250m/s^2

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