00:01
So here we have the penguin.
00:04
We can say weight sub p.
00:09
So this would be going up would be n sub p.
00:13
Going to the right would be force of friction sub p.
00:19
And then going down weight of the penguin.
00:22
And then we have here we could say that drawing the this would be the sled.
00:32
And then on top of the sled we have the penguin p.
00:35
So we can say that going up, going up would be m sub 2, or we could better say n subtotal.
00:53
Going to the right would be the force applied f.
00:55
To the left would be the force of friction total.
01:00
And then going down and be the total weight equaling 130 newtons.
01:08
We know that the weight of the penguin is also 70 neutrons.
01:11
So these would be a two free -byter diagram.
01:13
And then we can say that the normal force exerted on the penguin by the sled would be n sub p, equaling the weight sub p, and this is equalling the mass of the penguin times g.
01:29
And this is, we know that this is equaling 70 newtons.
01:35
We know that then n sub 2, or n subtotal, rather, is equalling the total weight...