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Pressure/Moments/Speed (Force (If the forces on an object are balanced (or…
Pressure/Moments/Speed
Pressure = Force / Area
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the smaller the area, the higher the pressure
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Force
If the forces on an object are balanced (or if there are no forces acting on it), this is what happens:
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Objects float in water when their weight is balanced by the upthrust from the water. The object will sink until the weight of the water it pushes out of the way is the same as the weight of the object.
When an object rests on a surface such as the ground, the reaction force from the ground balances its weight. The ground pushes up against the object. The reaction force is what you feel in your feet as you stand still. Without this balancing force you would sink into the ground.
If the forces on an object are unbalanced, this is what happens:
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