Question

Q1. In a 100m track event, the time taken by four runners is 10 sec., 10.2 sec., 10.4 sec and 10.6 sec. Find the ratio of their speed.

Answer 1

Distance (s)=100m
time
T₁=10
T₂=10.2
T₃=10.4
T₄=10.6
by v=$\frac{s}{t}$
we get
V₁=$\frac{100}{10}$
V₁=10m/s

V₂=$\frac{100}{10.2}$
V₂=9.8m/s

V₃=$\frac{100}{10.4}$
V₃=9.61 m/s

V₄=$\frac{100}{10.6}$
V₄=9.43 m/s

V₁:V₂:V₃:V₄ = 10 : 9.8 : 9.61 : 9.43