Complete Question:
On a circular race track with a radius of 3.23 km, a certain road car set a speed record of 372 km/h. What was the car's centripetal acceleration?
Answer:
Centripetal acceleration = 3.306 m/s²
Step-by-step explanation:
Given the following data;
Radius, r = 3.23 km to meters = 3.23 * 1000 = 3230 m
Velocity = 372 km/h to meters per seconds = 372*1000/3600 = 103.33 m/s
To find the centripetal acceleration;
Centripetal acceleration = velocity²/radius
Centripetal acceleration = 103.33²/3230
Centripetal acceleration = 10677.09/3230
Centripetal acceleration = 3.306 m/s²