A particle is in linear simple harmonic motion between two points A and B, 10 cm apart. Take the direction from A to B, as positive direction and give the signs of velocity and acceleration on the particle when it is (i) at the end B, (ii) at 3 cm away from A going towards B.

Explanation

(i) At the end of B, velocity of the particle is zero. Here acceleration and force both are negative as they are directed along BR i.e., along negative direction.

(ii) At 3 cm away from A going towards B, the particle is at position R, with a tendency to move along RP which is positive direction. Here, velocity and acceleration both are positive.