00:01
Let us begin with subpart 8.
00:02
Here, the output power p .o.
00:06
Is given as 150 kilowatts.
00:10
This is equals to 150 into 10 power 3 watts.
00:16
The angular speed omega is given as 4 ,000 revolution per minute.
00:24
We need to convert this into units of radian per second.
00:28
So this is equals to 4 ,000.
00:31
Into 2 pi by 60 radian per second which is equals to 418 .9 radian per second.
00:45
So this is the angular speed.
00:48
Now the power at which the torque does work is the product of the torque and the angular velocity.
00:58
So we can write power p as torque into angular speed.
01:03
From this expression we can obtain an expression for torque that is torque tau equals the output power divided by the angular speed this is equals to 150 into 10 power 3 watts divided by angular speed is 418 .9 radian per second this is equals to 315 sorry, 358 .1 newton meter...