Position vector of a particle moving in ...

Position vector of a particle moving in `x-y` plane at time `t` is `r=a(1- cos omega t)hat(i)+a sin omega t hat(j)`. The path of the particle is

A

a circle of radius a and centre and (a,0)

B

a circle of radius a and centre at (0,0)

C

an ellipse

D

Neither a circle nor an ellipse

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The correct Answer is:

A

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