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Standard XII
Physics
Problem Solving
What is a fre...
Question
What is a free body diagram?
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Solution
A free-body diagram is a graphic, dematerialized, symbolic representation of the body.
In a free diagram, the size of the arrow denotes the magnitude of the force.
While the direction of the arrow denotes the direction in which the force acts.
A free body diagram consists of a simplified version of the body, coordinate system, etc.
Free body diagrams are tools used to visualize force and moments applied to the body.
Example A bottle is pushing horizontally on a tabletop.
According to the diagram, the body is moving downward.
The frictional force
F
friction
is directed in the opposite direction of the motion (
F
app
or applied force).
The normal force(
F
norm
) is directed normally to the plane of motion.
F
grav
is the weight or force due to gravity.
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