Physics centripetal acceleration

Question

Zach drives his car around a circular section of a road having a radius of 50 meters at a constant speed of 20 m/s. What is the centripetal acceleration of Zach's car?

Answer 1

Hi Mar A.,

Use the equation a_R = v²/r, where v = 20 m/s and r = 50 m.

You can plug in the numbers and do the math. My answer is a_R = 8 m/s².

I hope this helps, Joe.