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The unit vector parallel to the resultan...

The unit vector parallel to the resultant of the vectors `vec(A) = 4hat(i) + 3hat(j) + 6hat(i)` and `vec(B) = -hat(i) + 3hat(j) - 8hat(k)` is

A

`(1)/(7)(3hat(i) + hat(j) - 2hat(k))`

B

`(1)/(7)(3hat(i) + 6hat(j) + 2hat(k))`

C

`(1)/(49)(3hat(i) + 6hat(j) - 2hat(k))`

D

`(1)/(49)(3hat(i) - 6hat(j) + 2hat(k))`

Text Solution

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A
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AAKASH SERIES-MOTION IN A PLANE -Practice Exercise
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  8. Three vectors vec(P), vec(Q), vec(R) obey vec(P) + vec(Q) = vec(R) and...

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

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

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

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

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

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

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