A-level Physics · Oscillations
SHM: displacement, acceleration
Use x = A cos ωt (radians) for the displacement at a time, or a = −ω²x for the acceleration.
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Question 1
A mass oscillates with simple harmonic motion with an amplitude of 4.8 cm and a period of 0.35 s. At time t = 0 the mass is at its maximum positive displacement. Calculate its displacement from the equilibrium position at t = 0.41 s, in cm. Give your answer to 3 significant figures.
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