Answer
$10.4 \text{ m/s}$
$3.76*10^{1} \text{ km/hour}$
$34.2 \text{ ft/s}$
$2.34*10^{1} \text{ miles/hour}$
$8.77 \text{ seconds}$
Work Step by Step
$$\frac{100 \text{ m}}{9.58 \text{ s}}=10.4 \text{ m/s}$$
$$\frac{100 \text{ m}}{9.58 \text{ s}}*\frac{1 \text{ km}}{1000 \text{ m}}*\frac{3600 \text{ seconds}}{1 \text{ hour}}=3.76*10^{1} \text{ km/hour}$$
$$\frac{100 \text{ m}}{9.58 \text{ s}}*\frac{3.28084 \text{ ft}}{1 \text{ meter}}=34.2 \text{ ft/s}$$
$$\frac{100 \text{ m}}{9.58 \text{ s}}*\frac{1 \text{ km}}{1000 \text{ m}}*\frac{0.621371 \text{ miles}}{1 \text{ km}}*\frac{3600 \text{ seconds}}{1 \text{ hour}}=2.34*10^{1} \text{ miles/hour}$$
$$1*10^2 \text{ yards}*\frac{3 \text{ feet}}{1 \text{ yard}}*\frac{1 \text{ sec}}{34.2 \text{ ft}}=8.77 \text{ seconds}$$
