Question

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

Answer 1

Here,

Distance = 100 m = 100/1000 km = 0.1 km

Time = 9.83 s = 9.83/(60 × 60) h = 0.0027 h

So, speed = 0.1/0.0027 = 37 km/h (approx)