Four racecars are driving at constant speeds around a circular racetrack. The data table gives the speed of each car and each car’s distance from the center of the track at one instant.

Question

Car Speed (m/s) Position (m)
A 40 20
B 40 25
C 50 20
D 50 25
Rank the cars’ accelerations from largest to smallest. To rank items as equivalent, overlap them.

Answer 1

Ac = v^2/R

for A it is 1600/20 = 80 m/s^2
for B it is 1600/25 = 64 m/s^2
etc