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Q.

Is it true that we use ball bearings in the wheels of cycles?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
We use ball bearings in the wheels of cycles. The ball bearing reduces the friction in the wheel. “The resistance to motion experienced when two surfaces which are in contact or move with respect to each other is called friction.” Friction is a contact force. When this frictional force is removed, the cycle can run smoothly on the road.
 
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