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y component of velocity is 20 and x comp...

`y` component of velocity is `20 and x` component of velocity is `10`. The direction of motion of the body with the horizontal at this instant is

A

`tan^(-1)(2)`

B

`tan^(-1)(1//2)`

C

`45^(@)`

D

`0^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A
`v_(y)= 20 and v_(x)= 10`
`:. Velocity vecv= 10hat(i)+20hat(j)`
Direction of velocity with x axis
`tan theta=(v_(y))/(v_(x))= (20)/(10)= 2`
`:. theta= tan^(-1)(2)`
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