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P1.5 Forces (Alex) (centre of mass (what is a centre of mass (The center…
P1.5 Forces (Alex)
centre of mass
what is a centre of mass
The center of mass is a position defined relative to an object or system of objects. It is the average position of all the parts of the system, weighted according to their masses.
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pressure[N/m]
Conversion of pressure = newton per square meter is pascal force per area unit units - psi = pounds per square inch - sengpielaudio Sengpiel Berlin. The SI unit of the pressure is the pascal with the formula sign Pa. 1 Pascal is equal to the pressure of 1 newton per square meter. 1 Pa = 1 N / m2 ≡ 1 kg / m.
the formula of pressure
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In this equation, P stands for pressure while F stands for force and A stands for area. Pressure is typically measured in a unit called the Pascal.
So what this means is that the amount of pressure that is exerted on an area is determined by the size of that area and by the amount of force that is pressing against it.
Therefore, if you have a given amount of force, you will have more pressure if it presses down on a small area than if it presses down on a large area.
effects of forces
A force acting on an object may cause the object to change shape, to start moving, to stop moving, to accelerate or decelerate. When two objects interact with each other they exert a force on each other, the forces are equal in size but opposite in direction.
Turning effect
If a body under the action of a net external force is allowed to rotate about a pivot, the body will tend to turn in the direction of the applied force.
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