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Angle which the vector vec(A)=2hati + 3h...

Angle which the vector `vec(A)=2hati + 3hatj` makes with the y-axis is given by :

A

`tan^(-2)(3/2)`

B

`tan^(-2)(2/3)`

C

`sin^(-1)(2/3)`

D

`cos^(-1)[3/2]`

Text Solution

Verified by Experts

The correct Answer is:
B
Here `A_(x)`
`A_(y)=3`
`tantheta=A_(x)/A_(y)=2/3`
`:.theta=tan^(-1)2/3`
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MODERN PUBLICATION-DESCRIPTION OF MOTION IN TWO AND THREE DIMENSION-MCQ(LEVEL-II)
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