Question

Diameter of a wheel of a car is 56cm.How many km it can cover in 5000 revolution

Answer 1

hope it helps. ... :)

Answer 2

GIven diameter =56cm 

      radius r = 28 cm

In 5000 revolution, 2πrx5000 distance is covered

                                 ⇒2π(28)5000/100000 ∵ 1km = 100000cm
                               
 ⇒19.8 km