![]() The work done by friction, work done by the normal force and the work done by gravity. So we're gonna figure out the work done by the applied force. You're just gonna use FD cosine data a bunch of times. So in this first part to calculate all the work's done by all the forces. We can always calculate work from forces by using F. So which one makes more sense? It's gonna be the left path. So in our left and right path you're going to calculate works or you can calculate net force. Right? So in this first part you're asked to calculate the works done by all of the forces. And to figure out which one, you're really just gonna take a look at what you're what you're also asked to do in the problems. You can go this left path like this or you can take this right path like this. So we're going from a situation here in our flow chart where we've got forces and eventually we want to get to network and we can see here from this flow chart is that there's actually two different ways to get there. We've got an applied force, We've got friction, we're grabbing normal, we have the displacements and what we want to do in the second part part B is we want to calculate the work the network that is done. So in this first example here, we've got all the forces listed on an object. So let's go ahead and take a look at our examples here and we'll start using this flow chart. It really just comes down to what you're given and asked to do in the problem. ![]() And the whole idea here is that there's actually multiple ways to calculate this network. The sum of all of the works done by all of the forces. The whole idea here guys, is that the nets or the total work that is done on an object? We've seen that word. ![]() So I'm gonna show you how to do that in this video using the super awesome flow chart that we'll use for our problems. ![]() And in some problems, you'll be given a bunch of forces and you'll be asked to calculate the network. So up until now in our work problems, we've been calculating the work done by a single or just one force. ![]()
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