A simple pendulum 4 m long swings with an amplitude of 0.2 m . What is its acceleration at the ends of its path ? g = 10 m s - 2

Question

A simple pendulum 4 m long swings with an amplitude of 0.2 m . What is its acceleration at the ends of its path ? g = 10 m s - 2, zero, 10 m s - 2, 0 . 5 m s - 2, 2. 5 m s - 2

MARKS App · Accepted Answer

T = m g cos ⁡ θ ∴ F n e t = m g sin θ and acceleration = g sin ⁡ θ = g tan ⁡ θ as angle is very small sin ⁡ θ = tan ⁡ θ ∴ a net = 10 × 0 . 2 4 = 0 . 5 m s - 2

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