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6 simple machines
wedge, screw, pulley, lever, inclined plane, wheel &axle
the product of the force applied to an object and the distance the object moves in the direction of that force
What needs to be done in order for something to be considered work
There must be a force on the object and the object had to have moved some distance
the distance moved must be in the direction of the force
Unit of work?
When you're carrying an object, moving it horizontally are you doing any work?
Is work done when lifting an object?
If force and distance are in the same direction...
if force and distance are in the opposite direction