A ball is released from rest at a height of

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

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}

(b)

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

(c)

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

(d)

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