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Assertion : If both the speed of a bod...

Assertion : If both the speed of a body and radius of its circular path are doubled, then centripetal force also gets doubled.
Reason : Centripetal force is directly proportional to both speed of a body and radius of circular path.

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SL ARORA-Motion in a Plane-Excercise
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  2. Which of the following quantities are independent of the choice of ori...

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  3. Are the commutative law and associtive law applicable to vectors subtr...

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  4. Can three vectors not in one phane giv e a zero resultant ? Can four v...

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  5. What is the differnce between the follwing data ? (i) 3 (5 km h^(-1) ,...

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  6. What was the difference between the speed of vehicle A on Day 1 ...

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  7. Is | vec A + vec B| greater than or less than |vec A| + |vec B| ? Ex...

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  8. Is |vec A - vec B| greater than or less than |vec A| + |vec B| ? Exp...

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  9. What is the property of two vectors vec A and vec B, if | vec A+ ve...

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  10. The sum and differnce of two vectors are perpendicular to each other. ...

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  11. Find the condition for two vectors to be (i) paraiiel.

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  12. If veca=x1veci+y1vecj and vecb=x2veci+y2vecj, find the condition that ...

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  13. If |vec P xx vec Q|=PQ then the angle between vec P and vec Q is

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  14. The magnitude of vector vec A is 2.5 metre and is directed towards eas...

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  15. The magnitude of vector vec A is 2.5 metre and is directed towards eas...

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  16. The magnitude of vector vec A is 2.5 metre and is directed towards eas...

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  17. The magnitude of vector vec A is 2.5 metre g and is directed towards e...

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  18. A person sitting in an open car moving at constant velocity throws a b...

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  19. A person sitting in an open car moving at constant velocity throws a b...

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  20. A bob hung from the ceiling of a room by a string is performing simple...

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  21. A bob hung from the ceiling of a room by a string is performing simple...

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