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Question
Moving parts of most machines use
Moving parts of most machines use
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Solution
The correct option is A ball bearings
Bearings or ball bearings are used to reduce friction between moving parts of a machine. Instead of the two surfaces sliding against each other, they roll over the bearings. As a result of this, sliding friction is replaced with rolling friction.
Bearings or ball bearings are used to reduce friction between moving parts of a machine. Instead of the two surfaces sliding against each other, they roll over the bearings. As a result of this, sliding friction is replaced with rolling friction.
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