Question

the wheel of a car are of diameter 80cm is how many complete the revolution does each wheel make in 10 minutes when the car travel at a speed of 66 km per hour​

Answer 1

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Answer:

4375 rotations

Step-by-step explanation:

Speed of the car=66km/h

=66k*(55/3)*60m/s

=1100m/m

=110000cm/m

Diameter of wheel=80cm

radius=(80/2)cm=40 cm

Perimeter =

$2\pi \: r$

=2*22/7*40cm

=1760/7cm

Total Distance travelled=Speed×time

=110000cm/m×10m

=1100000cm

Rotations made=Distance/Perimeter of the wheel

=1100000/(7/1760)

=1100000*7/1760

=625*7

=4375