First slide

Simple harmonic motion

Question

s – t graph of a particle in SHM is as shown in figure. Choose the wrong option.

Easy

A

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

At B acceleration of particle is maximum and negative.
C

At C acceleration of particle is maximum and in positive direction.
D

At B particle is at extreme position with zero velocity.

Solution

At A, particle is in mean position. Hence, displacement is zero, acceleration is zero and velocity is maximum.
At B, particle is in extreme position. Hence, displacement is maximum, acceleration is maximum directed in negative direction and velocity is zero.
At C, particle is in mean position. Hence, displacement is zero, acceleration is zero and velocity is maximum.

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