2. (30 pts total) The position x(t) of a particle moving one dimensionally along the x axis is given by the function x = 2t - 3t2 + 4t - 7 where x is in units of meters and t is in units of seconds. Units are not shown for the coefficients. Calculate the following. You may drop units during your calculation but make sure to include units in your final answers. Round your final answers to three significant figures. a. (10 pts) the instantaneous velocity v at t = 1.00 s b. (10 pts) the instantaneous velocity v at t = 2.00 s c) (10 pts) the average velocity Vavg for the time interval t = 1.00 s to t - 2.00 s