Q 7. A simple pendulum of length 5m, with a bob of mass 1 kg, is in simple harmonic motion. As it passes through its mean position, the bob has a speed of 5 m/s. The net force on the bob at the mean position is
(A) zero
(B) 2.5 N
(C) 5 N
(D) 25 N
Answer: (A)
Explanation:
