A projectile is fired upward, so its vertical velocity will Slow down, stop, speed up.
Speed up, stop, speed up.
Slow down, stop, slow down

Slow down, stop, speed up.

It slows due to gravity (acting against gravity due to upward motion), stops because at maximum height vertical velocity is zero and the body has only the horizontal velocity, speed up due to action of gravity on the body due to downward motion.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.