Question

example12 plz fzvsgs7yw

Answer 1

Distance travelled in 5000 revolution=11km = 11000m

$Distance \: travelled \: in \: 1 \: revolution = \frac{11000}{5000} = 2.2cm$

=>Circumference of the wheel =2.2cm

Let the radius of the wheel be x cm.

A/c

$2\pi \times r = 2.2 \\ = > r = \frac{2.2 \times 7}{22} \\ = > r = \frac{7}{10} = 0.7$

Hence radius of the wheel = 0.7cm

=>diameter of the wheel=1.4cm