which of the following is true about the magnitude of the velocity and acceleration of an object at point D on the trajectory?

Answer:
D) v= 6.4 m/s a=10m/s^2
Explanation:
At top vnet= ucos (theta)
= 10 cos (50)
=10× 0.64=6.4m/s
Acc will be g (10m/s^2)
•At top point vy=0 and vx=ucos (theta)
Horizontal vel always remain same.