Question

A cheetah runs a distance of 200mtrs in 10 seconds .What is the speed of cheetah in :-
1)Metre per second.
2)KM per hour

Answer 1

Speed=Distance/Time
given distance=200m
time=10s
1)speed=200/10
speed=20m/s
2)1m/s=18/5km/hr
Speed=20*18/5
Speed=72km/hr

hope it helps...

Answer 2

The Speed of cheetah is 1) 20 m/s and 2) 71.43 km/s.

Given data:  

Distance = 200 meter = 0.2 km  

Time = 10 seconds = 0.0028 hours

               $Speed \quad { m/ sec = \frac { distance }{ time }$

               $= \frac { 200m }{ 10sec}\quad \\= 20\frac { m }{ sec }$

               

               $Speed (\frac { km }{ hr}) = \frac { distance }{ time } \\=\frac{0.2km}{ 0.0028hr } \quad \\=\quad 71.43\frac { km }{ hr } .$

1. The speed of cheetah in Metre per second = $20 \frac { m }{ sec }$

2. The speed of cheetah in KM per hour = $71.43 \frac { km }{ hr }$