Physics

Problem

A bicycle travels around a flat circular track of radius

50\,\text{m}

. At a certain instant its speed is

10\,\text{m}\,\text{s}^{-1}

and the magnitude of its speed is increasing at

2.0\,\text{m}\,\text{s}^{-2}

. What is the magnitude of the bicycle’s total acceleration at that instant? a)

4.0\,\text{m}\,\text{s}^{-2}

2.8\,\text{m}\,\text{s}^{-2}

2.3\,\text{m}\,\text{s}^{-2}

2.0\,\text{m}\,\text{s}^{-2}