Question

Consider a halfback with a mass of 90kg running down the football field and encountering a collision with a defensive back. If the halfback experiences a force of 800N for 0.9 seconds, how much impulse will he experience? Include the formula used.
Thanks so much if you can help!

Answer 1

Answer:

The impulse experienced by the halfback is 720 N-s.

Explanation:

We have,

Mass of a halfback is 90 kg

Force experienced by the halfback is 800 N

Time for which the force is applied is 0.9 seconds

It is required to find the impulse experienced by the halfback. Impulse applied by an object is given by the product of force applied for a very short duration of time. It can be given by :

$J=F\times t\\\\J=800\times 0.9\\\\J=720\ N-s$

So, the impulse experienced by the halfback is 720 N-s.