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When brakes are applied it becomes difficult to move a cycle because

a)sliding friction is greater than rolling friction
b)rolling friction is greater than sliding friction
c)rolling friction is absent
d)sliding friction is absent
select any one option from above a,b,c,d


the ans is option  a 

when brakes are applies it changes to sliding friction hence more friction is applied and it becomes difficult..
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It is because sliding friction is greater than rolling friction.
option(a) is correct.

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