Question

A school bus takes 40 minutes to travel a distance of 40 km. Calculate its speed in km/h and m/s ​

Answer 1

given = time(m) = 40

distance = 40 km

Speed = distance / time

first finding speed in m/s

1 km = 1000 m

then 40 km = 40000 km

1min = 60 seconds

then 40 min = 2400 seconds

Speed = distance / time

speed = 40000/2400

so , speed = 16.6666667

speed = 16.6667 m/s

now finding speed in km/h

we know that 60 mins = 1 hours

1 min = 0.0167 hours

so 40 min = 0.0167 × 40 = 0.668 hours

Speed = distance / time

speed = 40 / 0.668

speed = 59.880239521

speed = 59.8802 km/h