Velocity - time graph of a particle executing SHM is as shown in fig. Select the correct alternatives.
A: at position 1, displacement of particle may be +ve or -ve
B: at position 2, displacement of particle is -ve
C: at position 3, acceleration of particle is +ve
D: at position 4, acceleration of particle is +ve

Options

A. A,B
B. B,C
C. A,D
D. C,D

Answer

D