In the path shown below, the locations of a car driving around a track are shown at EQUAL time intervals where ?t = 20 s. The car starts with speed 40 m/s at x0 and uniformly slows down to 20 m/s from x0 to x2. The car then travels at a constant speed from x2 to x4. The corner at x3 has a radius of r = 40 m. Assume the car continues at a constant velocity after point x4. Calculate the MAGNITUDE (no plus or minus signs) of the accelerations a0 to a4 at the points x0 to x4 around the path.