pitcher claims he can throw a $0\mathrm{.}140-$kg baseball with as much momentum as a $2\mathrm{.}10-$g bullet moving with a speed of $1\mathrm{.}50103$ m$/$s$.$

$($a$)$ What must the baseball's speed be if the pitcher's claim is valid?

m$/$s

$($b$)$ Which has greater kinetic energy, the ball or the bullet?