When will the value displacoment be
equal to distance. Can the
value a
displacement
illustrate with
the help of an
Example ?
Answers
Answer:
when the body is moving in a straight path without any curve
example:
a body moved from point A to a point B in a straight path and covered distance equal to 10 meters
then displacement is also 10 meters
Explanation:
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Answer:
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.
Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
Explanation:
(a) The magnitude of displacement over an interval of time is the shortest distance (which is a straight line) between the initial and final positions of the particle.
The total path length of a particle is the actual path length covered by the particle in a given interval of time.
For example, suppose a particle moves from point A to point B and then, comes back to a point, C taking a total time (t), as shown below. Then, the magnitude of displacement of the particle = AC.
Whereas, total path length = AB+BC.
It is also important to note that the magnitude of displacement can never be greater than the total path length. However, in some cases, both quantities are equal to each other.
(b) Magnitude of average velocity = Magnitude of displacement / Time interval
For the given particle,
Average velocity = AC/t
Average speed = Total path length / Time interval
= (AB+BC)/t
Since, (AB+BC)>AC, average speed is greater than the magnitude of average velocity. The two quantities will be equal if the particle continues to move along a straight line.