00:01
We asked to find the maximum centripetal acceleration in terms of g for the washing machine in the previous problem.
00:07
So what we're looking for is the centripetal acceleration divided by g, and i think i forgot to put a g in here.
00:21
So the maximum, we know, is going to be on the outer diameter of the drum, and is going to be at the higher spin speed.
00:36
Now, we need to be careful with our units here now, because we have, we need this to be, if we're going to use g in meters per second squared, we need to have this stuff, this be in meters per second squared.
00:52
So we need to convert this omega squared to, so this would be revolution squared per minute squared.
01:01
We need to convert that to radian squared per second squared.
01:04
So we can do that by multiplying by 2 pi over 60 times to this second power.
01:11
Or obviously we could have pulled that 2 pi over 60 inside of this square here.
01:16
So we have the radius and we have, whoa, wait a minute.
01:26
That's not correct because i use the diameter here.
01:29
And that's something you should be very careful about...