in one dimensional metron ,instantaneous speed v satisfies?
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Key concept: Instantaneous speed: It is the speed of a particle at a particular instant of time. When we say “speed”, it usually means instantaneous speed. The instantaneous speed is average speed for infinitesimally small time interval (i.e., ∆ → 0).

As instantaneous speed is less than maximum speed. Then either the velocity is increasing or it is decreasing. For maximum and minimum displacement we have to keep in mind the magnitude and direction of maximum velocity.
As maximum velocity in positive direction is v0, magnitude of maximum velocity in opposite direction is also v0.
Maximum displacement in one direction = v0T Maximum displacement in opposite directions = -v0T Hence,-v0T<x< v0T.
Important point: We should not confuse with direction of velocities, i.e., in one direction it is taken as positive and in another direction it is taken as negative

As instantaneous speed is less than maximum speed. Then either the velocity is increasing or it is decreasing. For maximum and minimum displacement we have to keep in mind the magnitude and direction of maximum velocity.
As maximum velocity in positive direction is v0, magnitude of maximum velocity in opposite direction is also v0.
Maximum displacement in one direction = v0T Maximum displacement in opposite directions = -v0T Hence,-v0T<x< v0T.
Important point: We should not confuse with direction of velocities, i.e., in one direction it is taken as positive and in another direction it is taken as negative
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