00:01
So here we have a horizontal circular motion.
00:07
So let me just try and draw something for horizontal circular motion.
00:13
So we've got a jet flying horizontally like this, i mean turning horizontally.
00:18
Okay, so we have this.
00:19
The weight is going to be down and g.
00:23
There's going to be centrifugal force which is going to be towards the center of the circle.
00:33
So centrifugal force is always towards that.
00:35
So the lifting force, let me say lf, if you like, that's going to be the resultant of these two forces.
00:45
It's going to be the square root of mg squared plus fc squared.
00:52
Okay.
00:53
That's going to be the lift force.
00:56
So we have to find the centimeter of force and find weight.
01:02
Okay.
01:03
So let's say that the weight.
01:04
So the weight, m .g, that's just going to be the mass.
01:09
2 times 10 to the 5 times the acceleration into gravity 9 .8.
01:21
So that's just going to be a 0 .8.
01:29
Okay, so the weight is going to be 196.
01:35
0 0 .0.
01:39
Okay, so that's the weight.
01:43
Look about the centipal force which is 10v squared over r...