Question $1$

$2$ pts

Ball A and Ball B both have masses of $0\mathrm{.}5$ kg $.$ Ball A has an initial speed of $4\mathrm{.}0\frac{m}{s}$ to the right and Ball $B$ has an initial speed of $2\mathrm{.}0\frac{m}{s}$ to the left. If the two have an elastic collision, which statements below are true? $($Check all that apply.$)$

Both balls move to the left after the collision

Mechanical Energy is conserved in the two ball system

Ball A has zero velocity after the collision

Ball A$\text{'}$s final speed is $2\mathrm{.}0\frac{m}{s}$ to the left

Both balls move to the right after the collision