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A body of mass 6 kg is acted on a by a f...

A body of mass 6 kg is acted on a by a force so that its velocity changes from `3 ms^(-1)` to `5ms^(-1)`, then change in momentum is

A

48 Ns

B

24 Ns

C

30 Ns

D

12 Ns

Text Solution

Verified by Experts

The correct Answer is:
D
Given, mass `=6` kg
velocity `v=v_(2)-v_(1)=5-3=2`
`:.` Momentum `p=mv=6xx2=12 N-s`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-FORCE-Exercise 1
  1. Which of Newton's laws of motion explain the concept of inertia ?

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  2. A body of mass 6 kg is acted on a by a force so that its velocity chan...

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  3. The momentum p (in kg ms^(-1)) of a particle is varying with time t (i...

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  4. A force F=(6hati-8hatj+10hatk)N produces acceleration of sqrt(2) ms^(-...

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  5. A ball of mass 0.5 kg moving with a velocity of 2 ms^(-1) strikes a wa...

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  6. A body of mass 5 kg is moving with velocity of v=(2hati+6hatj)ms^(-1) ...

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  7. Find the force exerted by 5 kg block on floor of lift, as shown in fig...

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  8. Three blocks of masses m(1), m(2) and m(3) are connected by massesless...

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  9. Three blocks are placed at rest on a smooth inclined plane with force ...

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  10. In the arrangement shown, the mass m will ascend with an acceleration ...

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  11. A block of mass 10 kg is suspended by three strings as shown in the fi...

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  12. If impulse I varies time t as I(kg ms^(-1))=20t^(2)-40t. The change ...

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  13. An initially stationary device lying on a frictionless floor explodes ...

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  14. A bullet of mass 10 g is fired from a gun of mass 1 kg with recoil vel...

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  15. A bullet of mass 0.1 kg is fired with a speed of 100 ms^(-1). The mass...

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  16. A gradener pushes a lawn roller through a distance 20 m. If he applies...

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  17. How much work must work be done by a force on 50 kg body in order to a...

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  18. A force (3 hat(i)+4 hat(j)) acts on a body and displaces it by (3 hat(...

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  19. Force acting on a particale is (2hat(i)+3hat(j))N. Work done by this f...

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  20. A force F = Ay^(2)+By+C acts on a body at rest in the Y-direction. The...

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