Q 11-13-077JEE MainJEE Main 2023 (15 Apr, Shift 1)Easy
In a linear simple harmonic motion (SHM)
(A) Restoring force is directly proportional to the displacement.
(B) The acceleration and displacement are opposite in direction.
(C) The velocity is maximum at mean position.
(D) The acceleration is minimum at extreme points.
Choose the correct answer from the options given below:
Answer: (C) (A), (B) and (C) only
$F=-kx$ and $a=-\omega^2x$ make (A) and (B) true. Speed is maximum at the mean position (C true). The acceleration is maximum, not minimum, at the extreme points (D false).
Solution by Sreeraj P, M.Sc Physics