is initially at rest.

$($a$)$ Determine the speed of m$\_(1)($m$)/($s$)$ m$\_(1)$ as it collides with m$\_(2).($m$)/($s$)$

m$\_(1)$

of momentum and a statement of conservation of energy which can be combined to obtain the final velocity of each mass. $($m$)/($s$)$

m$\_(2)$

of momentum and a statement of conservation of energy which can be combined to obtain the final velocity of each mass. $($m$)/($s$)$

$($c$)$ Determine the height $($in m $)$ to which each ball swings after the collision $($ignoring air resistance$).$

m$\_(1)$

m$\_(1)$ and m$\_(2)$ after the collision. m

m$\_(2)$

m$\_(1)$ and m$\_(2)$ after the collision. m