Question

1) Which components remain constant throughout the motion?

vx = x component of the velocity
vy = y component of the velocity
ax = x component of the acceleration
ay = y component of the acceleration

I know that ax and ay remain constant but I am not sure about vx and vy.

Thank you!

Answer 1

if ax and ay are constant, then there is a constant acceleration. So, the velocity is changing unless the acceleration is zero.