Question

The radius of a wheel is 3.5cm.how many revolutions will it make in moving 11km

Answer 1

Hey !!

Here is your solution...

Radius (r) = 3.5 cm

Distance covered = 11 km.

1 km = 100000 cm
11 km = 1100000 cm

One revolution = A complete rotation of a wheel = circumference.

Revolutions = Total distance covered/ circumference

Circumference = 2πr
= 2 × 22/7 × 3.5
= 154/7
= 22 cm

Total revolutions = 1100000/22
= 50000

so, 50000 revolutions are completed by wheel.


Hope it helps you....

THANKS
^-^