00:01
Okay, so we're looking for the net force on this system of blocks, and we've already determined that the friction is 2924.
00:08
And so when we look at the system, we're looking at this system of blocks.
00:13
Okay, so forces acting on the system would be the force of gravity on this block on the far right here, which would be 893 times 9 .8, 8751 .4.
00:29
And then again, we've got the friction there.
00:31
There are other forces acting on the system like force of gravity and force normal, but these forces are balanced, and so they're not going to contribute to the net force.
00:43
So for the net force, we are just going to establish a positive and negative direction here.
00:50
So this is going to be our positive direction.
00:53
My axis is going to run like this and get bent there, and this is going to be my negative direction, with zero being like in the middle right there...