4. It helps porter transfer heavy loads, it reduces the friction Involved in moving an object, making, the object easier to transport. It is made up of wheel and an axle.
A compound machine is a machine that consists of more than one simple machine. For example, a wheelbarrow consists of a lever, as you read earlier in the lesson "Simple Machines," and also a wheel and axle.
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Compound Machine
A compound machine is a machine that consists of more than one simple machine. For example, a wheelbarrow consists of a lever, as you read earlier in the lesson "Simple Machines," and also a wheel and axle.
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