The speed of a spacecraft is recorded as

PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

9.96\times10^{4}\,\text{m\,s}^{-1}

. Report this speed to two significant figures. (a)

1.00\times10^{5}\,\text{m\,s}^{-1}

(b)

9.9\times10^{4}\,\text{m\,s}^{-1}

(c)

1.0\times10^{5}\,\text{m\,s}^{-1}

(d)

10\times10^{4}\,\text{m\,s}^{-1}