Compound, many different things combine to create a catapult. lever arm, torque battery (twisted rope) winding mechanism firing control (ratchet system with trigger)
Pulley, screw r-c2,c-2,4-5 rewnindgings.
A catapult is actually a compound machine.
Simple machines are considered simple because they usually only have one part or need one force to work.
they are:lever, pulleys, wheel and axelsand bannanas
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