a$)$ Convert $2$km$/$h to m$/$s

b$)$ Evaluate each of the following and express with SI units having an appropriate prefix:

$$ i$.(50$mN$)(6$GN$)$

$$ ii$.(400$mm$)(0\mathrm{.}6$MN$)2$

$$ iii.$45$MN$3/900$Gg

c$)$ Estimate the net force needed to accelerate a $1500$kg race car at $(1)/(2)$g

d$)$ What net force is required to bring a $1500$kg car to rest from a speed of $100$km$/$h within $55$m$?$ Suppose g$=9\mathrm{.}81$ m$/$s$2$

e$)$ Calculate the force required to accelerate $20$kg cart from rest to $0\mathrm{.}5$m$/$s in $20$sa$)$ Convert $2$km$/$h to m$/$s

b$)$ Evaluate each of the following and express with SI units having an appropriate prefix:

$$ i$.(50$mN$)(6$GN$)$

$$ ii$.(400$mm$)(0\mathrm{.}6$MN$)2$

$$ iii.$45$MN$3/900$Gg

c$)$ Estimate the net force needed to accelerate a $1500$kg race car at $(1)/(2)$g

d$)$ What net force is required to bring a $1500$kg car to rest from a speed of $100$km$/$h within $55$m$?$ Suppose g$=9\mathrm{.}81$ m$/$s$2$

e$)$ Calculate the force required to accelerate $20$kg cart from rest to $0\mathrm{.}5$m$/$s in $20$s