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A body of mass 5 kg is moving with veloc...

A body of mass 5 kg is moving with velocity of `v=(2hati+6hatj)ms^(-1)` at t=0s. After time t=2s, velocity of body is `(10 hati+6 hatj)`, then change in momentum to body is

A

`40hati kg m//s`

B

`20hati kg m//s`

C

`30hati kg m//s`

D

`(50hati+30hatj)kg m//s`

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AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-EXERCISE
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  2. A ball is moving towards the wall as shown in diagram then momentum is...

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  5. A particle of mass m strikes elastically on a wall with velocity v, at...

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  6. The average force necessary to stop a hammer with momentum p (in N-s) ...

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  9. The tension in the string connected between blocks is

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  15. The value of (T(3))/(T(1)) is

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  16. A block of mass 10 kg is moving on a rough surface as shown in figure....

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  17. The maximum value of F which can be applied on the system shown in fig...

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  19. If acceleration of A is 2m//s^(2) which is smaller than acceleration o...

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