And this is what? This is the adjacent angle. This is a 90 degreeĪngle, because we started off at level. So this distance is what? Well, we have theta. I have to apply the force downwards here- so that's thisĭistance- in order for this weight to move up thisĮither one.
Vertical direction? How much did it go up? And also, for what distance did Was this distance? What's its distance in the Skills, is how much did this object move up? So essentially, what We'll have to take out a little bit of our trigonometry With some force, and I rotated it through Meter, although it could be 2 kilometers and 1 kilometer, Weight that I'm lifting, that distance is 1. And also, one thing I want toįigure out, that I wanted to write, is let's say that theĭistance, that this distance right here, from where I'mĪpplying the force to the fulcrum, let's say that Here in mauve, that's our starting position. So let's do a little thoughtĮxperiment and see what happens after I rotate this Left-hand side, and I'm lifting this 10 newton block. Lever level or to actually rotate this leverĬounterclockwise? And when I rotate the lever counterclockwise, what's happening? I'm pushing down on this How much force do I have to apply to either keep the Want this whole lever to rotate clockwise.
To apply here to just keep this level? Because this weight's going Out is one, how much force- well, we could figure outĪ couple of things. Newton weight, and I've written 10 in there. Triangle, which essentially is what I've drawn. And you can kind of view thisĪs either a seesaw or a big plank of wood on top of a So I've drawn a simpleīeen exposed to simple levers before. And we'll learn a little bitĪbout mechanical advantage. Of energy and apply it to simple machines. What we've learned about work and energy and the conservation
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