To remove a huge rock that has blocked the road after a landslide we use a simple machine called a[[1]].

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Detailed Solution

To remove a huge rock that has blocked the road after a landslide, we use a simple machine called a pulley.
A machine with few or no moving parts is called a Simple machine. It works as a force multiplier. Hence, we use a simple machine called a pulley to remove a huge rock that has blocked the road after a landslide. A pulley is capable of doing heavy work.
A pulley is a simple machine made of a wheel with a Shaft around its rim and a rope passing through the shaft, which is used to lift heavy objects.

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