Question

a person travel a distance of 72 km in 1 hour calculate the average speed in metre per second​

Answer 1

Answer:

Average Speed=20m/s

Explanation:

Given,

Distance travelled(s)=72km

                                 =72*1000m

                                 =72000m

Time travelled(t)=1 hour

                          =1*60minutes

                          =60 minutes

                          =60*60seconds

                          =3600seconds

Average speed(v)=?m/s

Formulae,

v=s/t

 =72000m/3600s

 =720/36.m/s

 =20m/s

Average speed=20m/s