https://gyazo.com/f73e87ec531b8b8d98c9a8676ee4cd51
Not asking for a script, just advice on how I would achieve that.
Hello! So I see that you're trying to make a projectile. There's a lots of ways that you can make a part move and then apply effects to.
To get the part moving you can use:
TweenService
BodyMovers (such as BodyVelocity, BodyPosition)
CFrame
Each of these has their cons and pros, it depends what you need done and what suits you.