A particle is in linear S.H.M. between two points A and B, 10 cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it at 2cm away from B going towards A.

A particle is in linear S.H.M. between two points A and B, 10 cm apart

1.	A particle is in linear S.H.M. between two points A and B, 10 cm apart. Take the direction from A to B as the positive direction and give the signs of velocity, acceleration and force on the particle when it at 2cm away from B going towards A.
Answer» Solution :Refer Fig., here A and B represent the two EXTREME positions of an S.H.M. For VELOCITY, the direction from A and B is taken to be positive. For ACCELERATION and the force, the direction is taken positive if directed along AP and negative if directed along BP. At 2 cm away from B going towards A, the particle is at Q. with a tendency to MOVE along QP, which is negative direction. Here velocity, acceleration and force are all -ve.