Question

During which part of the simple harmonic motion velocity is positive but the displacement is negative, and vice versa?

Answer 1

When a particle in SHM moves from the left extreme to the mean position, its velocity (v) is positive (to the right) and displacement (x) is negative. When a particle in SHM moves from the right extreme to the mean position, velocity (v) is negative (to the left) and displacement (x) is positive.