3 years ago

If a car is traveling 60 mph, its tires may have an rpm of 840. How many revolutions do the car’s tires make in one second?

Physics

1 answer:

Varvara68 [4.7K]3 years ago

5 0

Forget about the car's speed. You don't need it.

The tires spin 840 rpm. That's 840 <em>Revolutions per Minute</em> .

There are 60 seconds in 1 minute. So something that happens 840 times in 1 minute happens (840 / 60) times every second.

(840 rev per minute) / (60) = <em>14 revs per second</em> .

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