00:01
An antwood machine is made by hanging two masses of a pulley.
00:04
We have one mass here, another, here.
00:12
This is m2g, m1g.
00:19
And provide perfect massless pulle on a perfectly frictionless strength.
00:27
What is the acceleration of the masses? the acceleration is going to be in favor of the heavier mass.
00:32
Let's just label that.
00:33
And we have tension forces on these two since this is massless and the pulley is frictionless we have no problem libel into two tensions the same so we're going to i'm writing that force for m1 this is t minus m1g right because up is going to be positive when the side down is negative 2 minus m1g is equal to acceleration is going to be upwards for the left -hand side right because we is going to curve this around so this is going to be the m a, the assertion is positive here.
01:08
And then writing an nerfuse equation for the other side, it was going to take up as positive, down is negative.
01:13
So t minus m2g is going to be minus ma because the exertion is now in negative direction, so we just have minus a.
01:22
So we can simply make t just a bit of formula in one equation, t would be equal to ma plus mg, m1g...