- #1

rmarkatos

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(b) What fraction of the initial kinetic energy remains after the collision.

(a) Pf=Pi

(m1+m2)vf=m1vi1

(1550kg+1220kg)vf=1550kg(12m/s)

2770kgvf=18600kg m/s

vf=6.71 m/s

I know my answer for part A is correct but part B i really have no idea how to approach it.