Question

if a sprinter runs a distance of 100 M in 9.83 seconds calculate his average speed in kilometre per hour

Answer 1

Given,
Distance = 100 m.
Time = 9.83 seconds.

Now,
Speed = Distance/ Time
= 100/ 9.83
= 10000/ 983 m/s
As we know,
Speed = 10000/ 983 m/s
= 10000/ 983 * 18 / 5
= 2000/983 * 18
= 36000/983 km/ hr