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A vector hat(i) + sqrt(3) hat(j) rotates...

A vector `hat(i) + sqrt(3) hat(j)` rotates about its tail through an angle `60^(@)` in clockwise direction then the new vector is

A

`hat(i) + sqrt(3) hat(j)`

B

`3vec(i) - 4vec(j)`

C

`2hat(j)`

D

`2hat(i)`

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The correct Answer is:
D
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AAKASH SERIES-MOTION IN A PLANE -Practice Exercise
  1. If vec(A) = 2hat(i) - 3hat(j) + 4hat(k) its component in xy plane is

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  2. The unit vector parallel to the resultant of the vectors vec(A) = 4hat...

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  3. A vector hat(i) + sqrt(3) hat(j) rotates about its tail through an ang...

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  4. If the angle between two vectors of equal magnitude P is theta, the ma...

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  5. Two forces are in the ratio of 5:2. The maximum and minimum of their r...

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  6. Two equal forces of magnitude .p. each are angled first at 60^(@) late...

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  7. Three vectors vec(P), vec(Q), vec(R) obey vec(P) + vec(Q) = vec(R) and...

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  8. The resultant of two forces 2 N and 3 N is sqrt(19) N. The angle betw...

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  9. Twelve forces each of 5 N act on a body simultaneously. If each force ...

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  10. Which of the following sets of forces acting simultaneously on a parti...

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  11. The resultant of two forces, one double the other in magnitude is perp...

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  12. If the difference of two unit vectors is also a vector of unit magnitu...

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  13. The resultant of two vectors vec(A) & vec(B) is vec(C). If direction o...

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  14. The greater and least resultant of two forces are 9 N and 5 N respecti...

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  15. The resultant of two forces at right angles is 13N. The minimum result...

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  16. Given that vecA + vecB + vecC=0 out of three vectors two are equal in...

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  17. A 10 kg wt is suspended as shown below then tension T(1) & T(2) are

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  18. A 10 kg body is suspended by a rope is pulled by means of a horizontal...

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  19. A' and 'B' are the two pegs separated by 13 cm. A body of 169 Kgwt is ...

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  20. The position vector of a particle is given by r = 3t^(2)hati + 4t^(2)h...

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