00:01
All right, so in this question we're told that a race car goes around a curve at 59 meters per second, so we have a speed, and the radius of the curve is 444 meters.
00:09
The car's mass, m, is 605 kilograms.
00:12
We're told to assume that the speed remains constant and inward is the positive direction.
00:17
We're asked what is the car's centripetal acceleration, so we know that centripetal acceleration is equal to v squared over r.
00:23
We're given both of those values, so we can plug those in.
00:27
That gives us a centripetal acceleration of 7 .84 meters per second squared.
00:34
And then we're asked what is it in g's.
00:36
Well, for that we're going to divide that centripetal acceleration by the acceleration of gravity, so we have 7 .84 meters per second squared divided by 9 .81 meters per second squared...