00:01
There were wildfires and i slept with my windows open last night, so my voice has shot.
00:05
Please excuse me.
00:06
We're asked to find power and we're given the following information.
00:12
We had a solid shaft.
00:15
It has a diameter of 30 millimeters.
00:24
It has a speed of 2 ,000 rotations per minute.
00:33
We asked to calculate the power and the allowable sheer stress is equal to 50.
00:53
Mega pascal's.
00:56
Okay, let's begin.
01:02
For part one, we're going to write the equation for shear stress, which is represented by lowercase tau, and then solve for torque.
01:42
My tau isn't coming across very nice.
01:54
Solving for t, and then we can substitute our values in pi times.
02:17
Let's change our this to pascal's times.
02:30
That's in meters.
02:32
We'll cube that.
02:32
That i'd that hold by thing by 16, 265 .07 newton meters.
02:46
And that gives me my torque...