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Lever
What kind of simple machine is a garage door
You are using a lever when you pull a nail with a hammer or bar.
Crowbar is like a claw of a hammer used to pray loose nails and are common examples of Levers.
A pulley isn't a kind of simple machine, it is a simple machine
A train is not a simple machine.
IT's NOT A SIMPLE MACHINE!
its not a simple machine
It is a simple lever.
Rope is not a simple machine on its own, it's a simple machine on a wheel and axle, then it's a pulley.
What kind of simple machine is a garage door
a compound machine is a combination of simple machines