Question

A race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 101 km/h. What is the car's centripetal acceleration in m/s2? answer in:___m/s2

Answer 1

We can find the centripetal acceleration as follows:

$\begin{gathered} a_c=\frac{v^2}{r} \\ where: \\ v=101km/h=28.0556m/s \\ r=\frac{diameter}{2}=\frac{1000m}{2}=500m \\ so: \\ a_c=\frac{(28.0556^2)}{500}=1.5742m/s^2 \end{gathered}$

Answer:

1.5742 m/s²