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Forces (Gravity (Gravity is a force of attraction between all masses, The…
Forces
Gravity
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The weight of an object depends on the gravitational field strength where the object is and is directly proportional to its mass
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Vector diagrams
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Scale vector diagrams are used to illustrate the overall effect when more than one force acts on an object: ~The forces are added together in a resultant force including magnitude and direction
~ The vectors are added head to tail and a resultant force arrow is drawn.
Scale vector diagrams can also be used when a force is acting in a diagonal direction
~Expressing the diagonal force as two forces at right angles to each other can help to work out what effect the force will have.
~ The Fr can be broken down to F1 and F2
~F1 is the same length as Fr in the horizontal direction
~F2 is the same length as Fr in the vertical direction
~ Fr is also the vector found by adding F1 and F2 head to tail.
Resultant Force
When more than one force acts on an object, these forces can be seen as a single force that has the same effect as all the forces acting together
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