Question

A bicycle wheel makes 5000 revolutions in moving 11km. Find the diameter of the wheel​

Answer 1

Answer:

5000 revolutions ___ ___ ___ 11000m

; 1 revolution ___ ___ ___ 11000/5000m

; 1 revolution. ___ ___. ___ 2.2m

1revolution = 2πr

;πD = 2.2m

22D/7 = 2.2m

D = 2.2×7/22m

D =0.7m

Answer 2

Answer:

diameter =70cm

Step-by-step explanation:

distance covered by the wheel in one Revolution =distance moved /number of revolutions.

=11/5000km.

=11/5000x1000x100cm

=220cm

=2x22/7xr

=220

=35cm

diameter =2r=2x35=70cm.