A sprinter practicing for the 200-m dash accelerates uniformly from rest at A and reaches a top speed of 37 km/h at the 52-m mark. He then maintains this speed for the next 97 meters before uniformly slowing to a final speed of 31 km/h at the finish line. Determine the maximum horizontal acceleration which the sprinter experiences during the run. Where does this maximum acceleration value occur? Part 1 Answers: Calculate (a) the magnitude of the tangential acceleration near start of the race and (b) the magnitude of the tangential acceleration near the end of the race. (a) |at| = i Finish line (b) |at| = i m/s² 39.9 m m/s²

A sprinter practicing for the 200-m dash accelerates uniformly from rest at A and reaches a top speed of 37 km/h at the 52-m mark. He then maintains this speed for the next 97 meters before uniformly slowing to a final speed of 31 km/h at the finish line. Determine the maximum horizontal acceleration which the sprinter experiences during the run. Where does this maximum acceleration value occur? Part 1 Answers: Calculate (a) the magnitude of the tangential acceleration near start of the race and (b) the magnitude of the tangential acceleration near the end of the race. (a) |at| = i Finish line (b) |at| = i m/s² 39.9 m m/s²