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 the end B.

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 the end B.
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 the end B, velocity is zero. Here acceleration and force are negative as they are directed along BP i.e. along negative direction.