A projectile is launched into the air and follows a parabolic trajectory in the absence of air resistance. If point $C$ is the highest point in theA projectile is launched into the air and follows a parabolic trajectory in the absence of air resistance. If point $C$ is the highest point in the

trajectory and point $D$ is a point at which the projectile is falling back to the ground, which relationship between the speeds and the

magnitudes of the acceleration at the two points is correct.

$v_C>v_{D,}$ and $a_C=a_D$

$v_C=v_{D,}$ and $a_C{a}_D$