First slide

Simple harmonic motion

Question

v – t graph of a graph of a particle in SHM is as shown in figure. Choose the correct

Easy

A

At A particle is at mean position and moving towards positive x axis.
B

At B acceleration of the particle is maximum and negative.
C

At C particle is at mean position and moving towards positive x-axis.
D

At B particle is at mean position with zero acceleration.

Solution

At A particle has zero velocity and approaching positive x-axis. It is at its extreme position with maximum displacement and maximum acceleration directed towards negative x-axis.
At B particle has positive velocity and approaches positive x-axis. It is at its mean position with zero displacement with respect to mean position and zero acceleration.
At C particle has zero velocity and approaching negative x-axis. It is at its extreme position with maximum displacement and maximum acceleration directed towards positive x-axis.

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