A body executes simple harmonic motion with an amplitude of 0.20 m and a period of 4.0 s. What is the maximum linear speed of the oscillating body?

Answer and explanation

Correct answer: C. 0.10π m/s

  1. Step 1: Angular frequency: ω = 2π / T = 2π / 4.0 = 0.5π rad/s. Step 2. Maximum speed in SHM: v_max = ω A = (0.5π)(0.20) = 0.10π m/s. Answer: 0.10π m/s. Why not the others: 0.20π doubles amplitude; 0.05π uses A = 0.10 m; 0.40π divides by T².

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