Velocity & Acceleration in SHM
For a particle performing S.H.M. the displacement - time graph is shown.

For that particle the force - time graph is correctly shown in graph

Show answer and solution
Answer: (c)
- The graph starts at and rises, so .
- Restoring force .
- So starts at zero and first goes negative, then positive: an inverted sine curve.
- So the answer is (c).