A soccer player kicks a ball, changing its momentum

Ответ:

jrsavala559p9969g

17.03.2022

0.012 seconds

Explanation:

The time at which the soccer player maintain contact with the ball is as follows:

Given that

Change in momentum = 11 kg.m.s^-1

The Net force applied = F = 910 N

Now the following formulas should be applied:

For acceleration:

$a = \frac{\triangle v}{\triangle t} \\\\\triangle v = a \triangle t$

For momentum

$\triangle p = m\triangle v\\\\\triangle p = ma\triangle t\\\\\triangle p = f\triangle t\\\\\triangle t = \frac{\triangle p}{F}$

Now

Put the values to the above formula

= 11 ÷ 910

= 0.012 seconds

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