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If vecA=3hati-4hatj and hatB=-hati-4hatj...

If `vecA=3hati-4hatj` and `hatB=-hati-4hatj`, calculate the direction of `vecA+vecB`

A

`tan^(-1)(4)` with positive X-axis in close wise

B

`tan^(-1)(4)` with X-axis in clock wise

C

`tan^(-1)(4)` with positive X-axis in anticlock wise

D

`tan^(-1)(4)` with negative X-axis in anticlock wise

Text Solution

Verified by Experts

The correct Answer is:
A
`vecR=vecA+vecB,vecR=R_(x)hati+R_(y)hatj , Tan alpha=(R_(y))/(R_(x))`
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