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Two forces of equal magnitude act simul...

Two forces of equal magnitude act simultaneously on a partical. If the resultant of the forces is equal to the magnitude of each of then the angle between the forces is

A

an acute angle

B

an obtuse angle

C

a right angle

D

of any value

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The correct Answer is:
B
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CHHAYA PUBLICATION-VECTOR-EXERCISE (Multiple Choice Questions)
  1. Magnitudes of sum and difference of two vectors are equal . Angle betw...

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  2. Magnitude of each of two vectors is P. Magnitude of the resultant of...

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  3. Two forces of equal magnitude act simultaneously on a partical. If th...

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  4. A travels 30 m to the north, then 20 m to the east and after that 30s...

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  5. 0.2 hati+0.6 hatj+ahatk is a unit vector. Value of a should be

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  6. vecR is the resultant of the vectors vecA and vecB. If R=B/(sqrt(2)) t...

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  7. Position vector of a particle is related to time t as vecr=(t^2-1)hati...

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  8. Two forces of the same magnitude F are at right angles to each other....

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  9. If a and b two unit vectors inclined at an angle of 60^@ to each other...

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  10. The condition (a*b)^2 =a^2b^2 is satisfied when

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  11. If vecP+vecQ=vecR and |vecP|=|vecQ|=sqrt(3) and |vecR|=3 , then the ...

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  12. The angles which the vector vecA =3hati+6hatj+2hatk makes with the coo...

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  13. If veca+vecb=vecc, and a+b=c then the angle between veca and vecb is

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  14. If a1 and a2 are two non-collinear unit vectors and if |a1+a2|=sqrt(3)...

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  15. Which of the following is a vector quantity ?

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  16. The resultant of two forces of magnitude (x+y) and (x-y) is sqrt(x^2+y...

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  17. The sum of magnitudes of two forces acting at a point is 16 N. The r...

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  18. Two men have velocities of 4 m/s towards east and 3 m/s towards sout...

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  19. Two forces in the ratio 1:2 act simultaneously on a particle. The resu...

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  20. Given vecA=2hati+3hatj and vecB=hati+hatj . The component of vector ve...

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