Physics

Problem

A small toy car travels at constant speed around a circular track of radius

25.0\,\text{m}

, completing

0.50

revolution each second. What is the magnitude of the car’s centripetal acceleration? a)

4.9\times10^{2}\,\text{m/s}^2

2.5\times10^{2}\,\text{m/s}^2

3.9\times10^{3}\,\text{m/s}^2

7.9\times10^{1}\,\text{m/s}^2