Physics

Problem

A ball is released from rest at a height of

2.50\,\text{m}

. An electronic timing gate records its speed just before impact in three trials as

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

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

and

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

. Using the average speed, determine the experimental value of

g

. a)

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

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

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

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