Useful Conversion factors: 1 inch = 2.54 cm 1 m = 3.28 ft 1 mile = 5280 ft 1 mile = 1609 m 1 km = 1000 m = 100 cm 1 min = 60 sec 1 hr = 60 min Useful Equations: speed = distance/time average velocity = Ax/At average acceleration = Av/At Equations of Motion: Vf = Vi + at Xf - Xi = vit + (1/2)at2 v+2 = vi + 2a(Xf- Xi) At the 2000 Olympic Games in Sydney Australia, Marion Jones, one of the greatest track and field talents of all times was hailed as the "the Fastest woman on the planet" by reaching a top speed of 23.6 miles per hour. a) What was her top speed in meters per second? (show all your work) a) If she moved with a constant acceleration while speeding up, sketch her position versus time graph