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Can you tell When a pedal of a bicycle i...

Can you tell
When a pedal of a bicycle is rotated, the wheel starts rotating. How does this happen ?

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In both the examples given above, there is wheel fitted to the axle. The axle of the giant wheel rotates due to electricity. Due to this rotating axis, the wheel starts taking turns. Similarly, the axle of the bicycle moves due to muscular energy, when the pedal is moved. Due to movement of the axle, the wheels of the bicycle also start moving.
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NAVNEET PUBLICATION-SIMPLE MACHINES-QUESTION BANK
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