Question $4$

Calculate the force exerted on a rocket at take$-$off, when gases are expelled at a rate of $1100$ kg$/$s with a speed of $1\mathrm{.}25$x$105$ m$/$s

to$.$

$23$x$106$N

b$.$

$1\mathrm{.}4$x$108$N

c$.$

$4\mathrm{.}71$x$109$N