m At the given instant, the truck is going around the circular roundabout at a speed of 4D and a s ;. m magnitude of acceleration l a l of 9 2. s Values for the figure are given in the following table. Note the figure may not be to scale. Variable lJ'alue I91 70 degrees Using normal and tangential components, a. Determine the magnitude of the tangential acceleration of the truck, :13. b. Determine the magnitude of the normal acceleration of the truck, on. 1:. Determine the radius of curvature of the roundabout, p. Round your final answers to 3 significant digitsr'gures