A particle is in linear simple harmonic motion between two points A and B, 10 cm apart (Fig.). Take the direction from A to B as the + ve direction and choose the correct statements

(a) The sign of velocity, acceleration and force on the particle when it is 3 cm away from A going towards B are positive.

(b) The sign of velocity of the particle at C going towards O is negative.

(c) The sign of velocity, acceleration and force on the particle when it is 4 cm away from B going towards A are negative.

(d) The sign of acceleration and force on the particle when it is at point B is negative

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Answered by

Payal Gupta | Contributor-Level 10

4 months ago

This is a multiple choice answer as classified in NCERT Exemplar

(a, c, d) a) when the particle is 3 cm away from A going towards B, velocity is towards AB.i.e positive. SHM towards mean position so positive.

b) When the particle is at C velocity is towards B hence positive.

c) When the particle is 4 cm away from B is going towards A velocity is negative and acceleration towards mean position. Hence negative.

d) Acceleration is always towards mean position O. when the particle is at B acceleration and force are towards BA that is negative.

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