80 A point is moving on X Y plane such that y co ordinates varies with time as x a sin wt y a 1 cos wt where a and w are

Question

80 A point is moving on X Y plane such that y co ordinates varies with time as x a sin wt y a 1 cos wt where a and w are positive constants Velocity of the particle is mie a 1 aw 2 2 aw 3 810 3 aw 4

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