00:01
All right, so we have a wheel with a diameter of 34 inches.
00:03
It's rotating at 19 degrees per second, and we want to find the linear speed.
00:09
So it's doing, okay, so the circumference of this wheel is 34 pi inches, okay? so we know that 34 pi inches is the same as one revolution.
00:39
Okay, it is rotating.
00:44
We know that one revolution is the same as 360 degrees, right? because if you make one revolution, it's 360 degrees.
01:01
And we know that it's rotating at 19 degrees per second.
01:08
Now, i did all that because now the revolutions reduce out, the degrees reduce out, and i'm left with inches per second.
01:21
Inches per second is a linear speed...