Question

the wheel of a bus has a radius of 50 cm. how many revolutions of the wheel will it take to cover a distance of 3 km?

Answer 1

Find 1 revolution:

1 revolution = 2πr

1 revolution = 2π(50) = 100π cm = π m

Find the number of revolution needed:

1 revolution = π m

Distance = 3km = 3000 m

Number of revolution needed = 3000 ÷ π = 955.4

Answer: 955.4 revolutions

Answer 2

HEY MATE HERE IS UR ANSWER



NOW DIAMETER = 100CM

THEREFORE CIRCUMFERENCE = [tex](π times diameter)[tex]

= 3.14× 100 = 314 Cm

NOW THE NUMBER OF REVOLUTION REQUIRED NTO COMPLETE 3 KM


3KM = 300000 cm

NOW NUMBER OF REVOLUTION = 300000/314= 955.42 Approximately