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Draw a large dot on your large sheet of paper to represent the block. Draw vectors with their “tails” on the dot to show the forces exerted on the block. Label each vector and write a brief description of that force next to the vector.
In Newtonian physics, all forces are considered as arising from an interaction between two objects. Forces are specified by identifying the object on which the force is exerted and the object that is exerting the force. For example, in the situation above, a gravitational force is exerted on the block by the Earth.
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