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It is easier to pull a body than to push...

It is easier to pull a body than to push, because -

A

the coefficient of friction is more in pushing than that in pulling

B

the friction force is more in pushing than that in pulling

C

the body does not move forward when pushed

D

none of these

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Knowledge Check

  • STATEMENT-1: It is easier to pull a heavy object than to push it on a level ground and STATEMENT-2: The magnitude of frictional force depends on the nature of the two surfaces in contact.

    A
    (a) Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
    B
    (b) Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explaination for Statement-1
    C
    (c) Statement-1 is True, Statement-2 is False
    D
    (d) Statement-1 is False, Statement-2 is True.

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    A
    Rolling friction
    B
    Sliding friction
    C
    lubricants
    D
    viscous force

  • It is easier to liquify ammonia than oxygen because

    A
    it is easier to compress oxygen than `NH_(3)`
    B
    `NH_(3)` has a very low critical temperature as compared to `O_(2)`
    C
    `O_(2)` has a higher value of der Waals constant a and higher critical temperature than `NH_(3)`
    D
    `NH_(3)` has a higher value of van der Waals constant a and higher critical temperature than oxygen .

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