Question

If a sprinter runs a distance of $100meters$ in $9.83seconds$, calculate his average speed in $km/h$.

Answer 1

Step 1, Given data

Distance = 100 m

Time = 9.83 sec

Step 2, Finding the average speed

We know,

$Averagespeed=\frac{Distance}{Time}$

Putting all the values

$Averagespeed=\frac{100}{9.83}$ m/sec

Converting it into km/h

$\frac{100}{9.83}m{s}^{-1}=\frac{100}{9.83}\times \frac{18}{5}=36.622$ km/h

Hence the average speed in km/h is 36.622 km/h