Question

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

Answer 1

speed = distance/time
given : distance (d) = 100 m
time (t) = 9.83 secs
find : avg speed in km/h
solution :
speed = 100/9.83
= 10.1729 m/s

m/s to km/hr :
= (10.1729 × 3600) / 1000
speed = 36.6224 km/hr