I'm trying to launch an object from a slingshot. How do I make it launch? Also, I want the object to break another object only if it is going equal to or greater than a certain speed. How do I do that?

This will help for shooting: https://en.scratch-wiki.info/wiki/Shooting_Projectiles

For braking objects:

for the projectile sprite:

when green flag clicked
forever
if <<(speed) > [20]> and <touching [sprite you can break v] ?>> then
broadcast [break v]
end
end

for the sprite to be broken:

when I receive [break v]
switch costume to [broken costume v]

hope this works

Thank you

you would have to program the speed variable, you actually should use a custom block.

Can you explain to me how this works?