Import Question JSON

$\text{Hint: Net force on a body in SHM is towards the mean position.}$ $\text{Step 1: Draw the diagram.}$ $\text{The diagram shows a pendulum with positions A, B, and C, where B is the equilibrium position and A and C are the extreme positions.}$ $\text{Step 2: Analyze the forces at each position.}$ $\text{The velocities at extreme positions A and C are zero. So there is only tangential force and no centripetal force. At B, it has centripetal force due to velocity at the mean position.}$ $\text{At positions A and C (extreme positions):}$ $\text{- Velocity } v = 0$ $\text{- Only tangential component of weight acts: } mg\cos\theta$ $\text{- This tangential force points toward the equilibrium position B}$ $\text{- No centripetal force since velocity is zero}$ $\text{At position B (equilibrium/mean position):}$ $\text{- Velocity is maximum}$ $\text{- Net force has two components:}$ $\text{1. Tangential component = 0 (since it's at equilibrium)}$ $\text{2. Centripetal component points toward the center (upward along the string)}$ $\text{Therefore, the correct answer shows forces at A and C pointing toward B (restoring force), and the force at B pointing upward (centripetal force).}$