A catapult is a device used to throw or hurl a projectile a great distance without the aid of explosive devices-particularly various types of ancient and medieval siege engines.[1] Although the catapult has been used since ancient times, it has proven to be one of the most effective mechanisms during warfare. The word 'catapult' comes from the Latin 'catapulta', which in turn comes from the Greek καταπέλτης (katapeltēs), itself from (kata), "downwards"[2] + πάλλω (pallō), "to toss, to hurl".[3][4] Catapults were invented by the ancient Greeks.[5][6]
Strictly speaking, all three could be applicable. Could you be a little more specific with your question?
rocket propelled grenades
The rock cycle is how one type of rock can be changed into another type of rock.
The Rock Cycle.
The type of rock that can be foliated and/or non-foliated is the Igneous rock.
a type of rock
It is propelled by an engine. The type of engine depends on the type of plane how it was built and how much lift it requires.
The Trebuchet
sprouse
Gravity and air resistance are key forces acting on most catapults. Depending on the type of catapult, there will also be either tension or torsion. Both are forms of elasticity. Catapults with torsion acting on them are usually ballistas while catapults with tension acting on them are simply called catapults.
Rocket propelled grenades
Rocket propelled grenades
rocket propelled grenades
rocket propelled grenades
the crossbow or "belly shooter" and catapults.
rocket propelled grenades
The Catapults were used by the medieval Greeks and Romans.
yes they use catapults