4. REASONINGThe magnitude acof the car’s centripetal acceleration is given by Equation 5.2 as 2c/avr=, where vis the speed of the car and ris the radius of the track. The radius is r= 2.6 ×103m. The speed can be obtained from Equation 5.1 as the circumference (2πr) of the track divided by the period T of the motion. The period is the time for the car to go once around the track (
This is the end of the preview.
access the rest of the document.