Physics

Problem

A car traveling along a straight road slows uniformly from

22\,\text{m}\!\cdot\!\text{s}^{-1}

16\,\text{m}\!\cdot\!\text{s}^{-1}

3.0\,\text{s}

. What is the magnitude of the car’s average acceleration during this time interval? a)

6.3\,\text{m}\!\cdot\!\text{s}^{-2}

0.27\,\text{m}\!\cdot\!\text{s}^{-2}

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

5.3\,\text{m}\!\cdot\!\text{s}^{-2}