A 110 kg fullback is running at 4.4 m/s to the east and is stopped in 0.75 s by a head-on tackle by a tackler running due west.
A. Calculate the impulse exerted on the fullback.
B. Calculate the impulse exerted on the tackler.
C. Calculate the average force exerted on the tackler.
Fnet*delta time = change in momentum
The Attempt at a Solution
To solve A I set up the equation like this
.75X= 110 * 0 + 110 * 4.14
divide by .75 and you get
This is not right but I'm not sure why. Did I calculate the change in momentum incorrectly?
I'm not sure how to find the impulse on the tackler because I don't have his mass given to me and I don't have his velocity .