Question $2(20$ points$)$

In severe head$-$on automobile accidents, a deceleration of $60$ g or more $(1$ g $=32\mathrm{.}2$

$f\frac{t}{s^2})$ often results in a fatality. What force, in lbf$,$ acts on a man whose mass is $135$

lb $,$ when subjected to a deceleration of $60$ g $?$