91影视

The distance covered,$螖x=200\mathrm{m}$ .

Time taken by Chris Huber, $螖t=6.509\mathrm{s}$.

Whittingham鈥檚 speed is more by $19.0\mathrm{km}/\mathrm{h}$.

Speed may be defined as the time rate of change in distance. The speed of the cyclist can be found using the given distance and time.

The expression for the speed is given as follows:

$\mathrm{Speed}=\frac{\mathrm{Distance}}{\mathrm{Time}}$

Using equation (i), the speed of Huber is calculated as follows:

$\begin{array}{c}\mathrm{Huber}\text{'}\mathrm{s}\mathrm{speed}=\frac{200\mathrm{m}}{6.509\mathrm{s}}\\ =30.727\mathrm{m}/\mathrm{s}\\ =30.727脳\frac{18}{5}\mathrm{km}/\mathrm{h}\\ =110.6\mathrm{km}/\mathrm{h}\end{array}$

Since Whittingham鈥檚 speed is more than Huber by ,

$\begin{array}{c}\mathrm{Whittinghams}\mathrm{speed}=110.6+19.0\mathrm{km}/\mathrm{h}\\ =129.6\mathrm{km}/\mathrm{h}\end{array}$

First, convert Whittingham鈥檚 speed in m/s.

Distance is given in meters to find time so that we will convert speed into m/s.

$\begin{array}{c}\mathrm{Whittinghams}\mathrm{speed}=129.6\mathrm{km}/\mathrm{h}\\ =129.6脳\frac{5}{18}\mathrm{m}/\mathrm{s}\\ =36\mathrm{m}/\mathrm{s}\end{array}$

The time for Whittingham through 200 m was calculated as follows:

$\begin{array}{c}\mathrm{Time}=\frac{\mathrm{Distance}}{\mathrm{speed}}\\ =\frac{200\mathrm{m}}{36\mathrm{m}/\mathrm{s}}\\ =5.55\mathrm{s}\end{array}$

Hence, Whittingham鈥檚 time through 200 m was 5.55 sec.