A $0\mathrm{.}49-$kg particle has a speed of $5\mathrm{.}0$ m$/$s at point A and kinetic energy of $8\mathrm{.}3$ J at point B$.$

$($a$)$ What is its kinetic energy at A$?$

J

$($b$)$ What is its speed at point B$?$

m$/$s

$($c$)$ What is the total work done on the particle as it moves from A to B$?$

J