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what is the difference between displacement and distance

Dear student, 
 Distance is a scalar quantity which means it doesn't depend on the direction and its value is the total length of the path travelled. 
Whereas displacement is the vector quantity and it is dependent on the directions. The value of the displacement us the length of the points directly joining initial and final position. 
For example: 
On a circular path, when you start moving from a point and come back to the same point. 
distance travelled :2πR  m    (R is the radius of circular path)
Displacement: 0 m. 
Regards

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Distance

1.Distance is the path travelled by a body along any direction. E.g => distance travelled by a body is 2m.

2. It is a scalar quantity.

3.It is the actual path travelled by a body.

4.It is always positive.

Displacement

1.Displacement is the path travelled by a body in a particular specific direction. E.g. => displacement travelled by a body is 3m along south.

2.It is a vector quantity.

3.It is the shortest distance between initial and final position.

4.It can be either positive, negative or zero.
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the distance travelled by an object in a particular direction is called displacement and the distance travelled by the body is called distance
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Displacement is the shortest distance between intial and final position
Distance is the actual path covered by an object
Displacement may be zero or negative
But distance never be negative or zero
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