Answered

an automobile with 0.250 m radius tires travels 60,000 km before wearing them out. how many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?



Answer :

The tires do 38216560.5 revolutions.

Here, one revolution = circumference of the tire

Circumference of the tire is 2 × π × r

Put values in 2 × π × r

Circumference = 2 × π × r

Circumference = 2 × 3.14 × 0.250 m

Circumference = 1.57 m

Given, tire travelled =  60000 km = 60000000 m

Total revolution =  60000000 m / 1.57 m

Total revolution = 38216560.5

Therefore, The tires do 38216560.5 revolutions.

Learn more about revolutions here:- https://brainly.com/question/16533738

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