Answer to Question #230994 in Civil and Environmental Engineering for zhy

Question

1. A car is driving at speed of 80 mph in a circular track with a radius of 1500 

ft. The driver applied brake to decelerate the car and after 6 seconds, the speed 

decreases to half the original speed. What is the acceleration of the car at the 

instant after the brakes have been applied? At ft/s2

A. 9.18 C. 13.4

B. 9.78 D. 14

Answer 1

B = 9.78ft/s²