A95 kg fullback is running at 4.0 m/s to the east and is stopped in 0.75 s by a head on tackle by a linebacker heading due west. calculate the original momentum of the fullback, the impulse exerted on the fullback, the impulse exerted on the linebacker, and the average force exerted on the linebacker

Explanation:

Given

mass m=95 kg

velocity v=4 m/s

(a)Momentum of Fullback=P=m v

P=95\times 4=380 kg-m/s

(b)Impulse Exerted =change in momentum

I=-380 kg-m/s due to west

(c)Impulse Exerted on line backer=380 kg-m/s due to east

(d)Average Force exerted

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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think its the third option