Question

The diameter of the tyre of a truck is 140 cm.
Find how many times the tyre will rotate in
order to cover a distance of 220m.​

Answer 1

Step-by-step explanation:

Diameter of the wheel =140 cm

Radius =70 cm

Now,

1 round distance =2πr=2×

7

22

×70=440 cm

Since distance traveled in 60 mnts=66×1000×100 cm

Therefore, distance traveled in 1 mnts=

60

66

×1000×100 cm=110000 cm

Revolution in 1 mnt=

440

110000

=250

Hence, 250 revolution per minute must the wheel make in order to move at a speed of 66 km/hr.

hope you understand it bro do hardwrok all the best