Question

(3)
(iii) Value of acceleration at mid-position of a particle doing simple harmonic
motion -
(a)
zero
(b)
infinite
(c)
one
(d)
minimum​

Answer 1

Answer:

it's zero at centre. The speed of particle doesn't affect the speed of it's centre.

Answer 2

The value of acceleration at the mid-position of a particle doing simple harmonic motion is zero.

• Simple Harmonic Motion (SHM) is the motion in which the acceleration of the moving particle is proportional to its displacement from its mean position and directed opposite to the displacement ($a=-kx$).

• When the particle is at the mid-position which is the mean position, the displacement becomes zero.
• So the acceleration at that point, $a=-k(0)=0$
• Hence, acceleration at the mid-position of a particle doing SHM is zero.