Question

A bicycle's wheel of diameter 70 cm makes a
revolution in 1 second. Calculate the
distance it covers in km/hr.​

Answer 1

Answer:

Diameter of bicycle=70cm

Numbers of revolutions it make in 1 second=1 revolution

So,1 second=70cm

Then,1 hour=60×60 seconds=3,600 seconds

Distance=3,600×70=2,52,000cm

I hope it's help you

Answer 2

Answer:

79.2 km

Step-by-step explanation:

perimeter=

r=.35m

distance in one revolution =perimeter of wheel

2×22/7×.35=22m

distance in km/h=

22×18÷5=79.2km