Question

A car going around a curve with a radius of 15m experiences a centripetal acceleration of 2.5 m/s2. How fast is the car going?

0.17m/a

38 m/s

6.1 m/s

6.0 m/s

Answer 1

Step-by-step explanation:

The formula for centripetal acceleration is

`a_c=(v^2)/(r)` . Filling in:

`2.5=(v^2)/(15)` and

`v=√(2.5(15))` so

v = 6.1 m/s