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The velocity varies with time as vecv = ...

The velocity varies with time as `vecv = ahati + bthatj` , where a and b are positive constants. The magnitude of instantaneous velocity and acceleration would be

A

`a^2+b^2t^2,b`

B

`sqrt(a^2+b^2t^2),a`

C

`sqrt(a^2+b^2t^2),b`

D

`a^2+b^2t^2,a`

Text Solution

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The correct Answer is:
C
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