Question

A race car has a centripetal acceleration of 18.75 m/s2 as it goes around a curve. If the curve is a circle with radius 12 m, what is the speed of the car? A. 15 m/s B. 9.8 m/s C. 1.6 m/s D. 17.2 m/s

Answer 1

Option (A) is correct.

Step-by-step explanation:

The centripetal acceleration is given by

a= v²/r

V= velocity

r= radius= 12 m

a= centripetal acceleration= 18.75 m/s²

18.75= v²/12

v²=18.75 x 12

v²=225

v= 15 m/s