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If the net force acting on a body be zer...

If the net force acting on a body be zero , will it remain necessarily at rest ?

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No the body may be moving uniformly along a staight line .
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Knowledge Check

  • The net force acting is not zero on

    A
    A retarding train
    B
    A ball falling with terminal velocity
    C
    A kite held stationary
    D
    A truck moving with constant velocity

  • If the net magnetic force acting on a loop is zero then

    A
    no torque acts on loop
    B
    loop performs translational motion.
    C
    both A and B
    D
    torque

  • If the net force acting on a body is zero then the body is said to be in

    A
    unbalanced
    B
    balanced
    C
    equilibrium
    D
    none
    • PRADEEP-LAWS OF MOTION-Very short answer questions
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    3. A body is acted upon by a number of external forces. Can it remain at ...

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    8. The linear momentum of a body can change only in the direction of appl...

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    9. A force is always required to move a body uniformly . Comment .

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    10. Calculate the net force acting on a body of mass 10 kg moving with a u...

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    11. Calculate the mass of a body weighing 100 dyne . Take g = 10 ms^(-2) .

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    12. On what factors does the thrust on a rocket depend ?

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    13. Calculate the force acting on a body whose linear momentum changes by ...

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    14. A ball is suspended by a cord from the ceilling of a motor car What wi...

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    15. A vessel containing water is given a constant acceleration 'a' towards...

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    16. What is the ratio of SI to CGS units of linear momentum ?

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    17. Show that if the force acting on a particle is zero , its momentum wil...

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    18. The length of an ideal spring in increases by 0.1 cm when a body of 1 ...

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    19. The two ends of a spring - balance are pulled each by a force of 10 kg...

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