Question

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

Answer 1

Distance (d) = 100 m
Time (t) = 9.83 s
So, we can calculate the speed as:
Average speed =Total distance travelled/Time
Average speed for the entire journey:
=100/9.83=10.173 m/s
Now, we can convert it in km/h as:
=(10.173)(3600)/1000=36.62 km/hr