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An aeroplane is heading north east at a ...

An aeroplane is heading north east at a speed of `141.4ms^(-1)`. The northward component of its velocity is

A

`141.4ms^(-1)`

B

`100 ms^(-1)`

C

zero

D

`50 ms^(-1)`

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The correct Answer is:
B
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AAKASH SERIES-MOTION IN A PLANE -Practice Exercise
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  2. The horizontal and vertical components of a force re 8 N and 15 N resp...

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  3. An aeroplane is heading north east at a speed of 141.4ms^(-1). The nor...

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  4. To go from town A to ton B a plane must fly about 1780 km at an angle ...

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  5. A wheel of perimeter 4pi m is rolling on a horizontal surface. The dis...

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  6. Given two vectors vec(A) = hat(i) - 2hat(j) - 3hat(k) and vec(B) = 4ha...

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  7. If the two directional cosines of a vectors are (1)/(sqrt(2)) and (1)/...

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  8. If vec(P) = hat(i) + hat(j) + hat(k), its direction cosines are

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  9. If vec(A) = 2hat(i) - 3hat(j) + 4hat(k) its component in xy plane is

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

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

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

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

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

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

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

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

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

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

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

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