Distinguish between distance and displacement
Distance :
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distance travelled by a body is defined as the actual length of the path travelled by the body irrespective of its drection of motion.
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Distance is a scalar quantity.
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Distance is always taken as positive.
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distance travelled by a body changes according to the path of the body.
Displacement :-
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Displacement of a body is define as the shortest distance from initial to final position of the body.
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Displacement is a vector quantily.
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displacement can be positive, negative or zero.
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Displacement of body does not depend on its path, but depends only on its initial and dinal positions.