Question

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?
Help due tomorrow !!!!
Physics!!!

Answer 1

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

The tires spin 840 rpm.  That's 840 Revolutions per Minute .

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)  =  14 revs per second .