Question

A football at rest gets linear momentum of 3 kg m s1 in 0.6 s of time interval, when it is hit by a footballer. The force acted on the football in the interval is

Answer 1

Answer: 5N

Explanation:

Please check the attachment.

Answer 2

The Force acted on the football is 5N

GIVEN

Linear momentum of football = 3kg/s⁻¹

Time taken = 0.6 second

TO FIND

Force acted on the ball

SOLUTION

We can simply solve the above problem as follows-

According to second law of motion force is equal to the rate of change of linear momentum.

$F = \frac{dp}{dt}$

Where,

F = force exerted on the body

dp = change in linear momentum.

Putting the values in the above equation we get ,

$F = \frac{3}{0.6}$

= 5N

Hence, The Force acted on the football is 5N

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