10. A particle moves in a circle of radius 6, taking 11/7 seconds to make one rotation. a) Write an equation for the position vector at any time t. (Pick anywhere want for the position at t = O. It mav go in either the clock-mse or counterclock-pse direction.) b) Using a, show that the magnitude of the acceleration constant for all t-values_ (5 points) (4 points)