F(t) = [(7.2 multiplied by 106)t - (3.0 multiplied by 109)t2] N,
for 0 t 2.0 multiplied by 10-3 s, where t is in seconds. Find the magnitudes of the following:
(b) the average force exerted by the player's foot on the ball during the period of contact,
(c) the maximum force exerted by the player's foot on the ball during the period of contact, and
(d) the ball's velocity immediately after it loses contact with the player's foot.
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