Question

how to explain wheel and axle​

Answer 1

Answer:

simple machine called a wheel and axle refers to the assembly formed by two disks, or cylinders, of different diameters mounted so they rotate together around the same axis. The thin rod which needs to be turned is called the axle and the wider object fixed to the axle, on which we apply force is called the wheel

Explanation:

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Answer 2

Answer:

a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joining to the wheel to provide mechanical advantage