Science, asked by mmmmmmm8177, 6 hours ago

String roller is an example of wheel and axle give reason

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Answered by bhakti4616

Wheel and axle are those simple machines which consist of two co-axial cylinders of different diameters and are mounted on an axle. ... These machines help us by multiplying force. String roller, madani, spanner, etc are some examples of it.

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