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A particle is acted upon by a force of c...

A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle . The motion of the particle takes palace in a plane , it follow that

A

its velocity is constant

B

its acceleration is constant

C

its kinetic energy is constant

D

itmoves in a straight line

Text Solution

Verified by Experts

The correct Answer is:
C
When a force of constant magnitude acts on velocity to prepenciculer to it’s velocity , then there is no change in the kinetic energy remains constant.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CIRCULAR MOTION-EXERCISE 1
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  2. The change in the centripetal force of a body moving in a circular pat...

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  3. A particle is acted upon by a force of constant magnitude which is alw...

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  4. In uniform circular motion of a particle

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  5. The angular velocity of the seconds hand in a watch is

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  6. A car wheel is rotated to uniform angular acceleration about its axis,...

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  7. Theangular speed of a car increases from 600 rpm to 1200 rpm in 10 s ....

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  10. In hydrogen atom, the electron is moving round the nucleus with veloci...

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  11. A particle P is moving in a circle of radius r with a uniform speed u....

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  12. A wheel rotates with a constant angular velocity of 300 rpm. The angle...

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  13. The angular velocity of a particle rotating in a circular orbit 100 ti...

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  14. The value of centripetal acceleration in terms of frequency of revolut...

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  15. A ball of mass 0.12 kg is being whirled in a horizontal circle at the ...

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  16. A stone of mass m is tied to a string and is moved in a vertical circl...

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  17. A stone is attached to one end of a string and rotated in a vertical ...

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  18. A cane filled with water is revolved in a vertical circle of radius 4 ...

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  19. A small coin is kept at the rim of a horizontal circular disc which is...

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  20. A partical is moving along a circular path of radius 5m and with unifo...

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