Question

a wheel of a car rotated 1000 times in travelling a distance of 2.20 km. Find the diameter of the wheel.​

Answer 1

Answer:

Let radius of wheel = r

The wheel moves 2πr distance in one rotations

for 1000 times (rotations)

it moves 1000 (2πr)

Given that is equal to 1.76 km = 1760 km

1000(2πr)=1760

2000×

7

22

×r=1760

r=

200

56

r=

25

7

m

∴ radius of wheel =

25

7

m