Question

1)     When a body oscillating on a horizontal spring passes through its equilibrium position, its acceleration is zero. When the bob of an oscillating simple pendulum passes from left to right through its equilibrium position, is its acceleration a) zero; b) to the left; c) to the right; d) upward; or e) downward and why?​

Answer 1

Answer:

It's zero bcz in Simple Harmonic motion the net force at means position is zero

so F = ma => ma = 0, a = 0