A horizontal air-track glider oscillates in simple harmonic motion. The total range of its motion—defined as the distance between its two extreme positions—is 24 cm. The time taken for the glider to complete one full oscillation is 1.6 s.
At time t=0 st = 0\text{ s}t=0 s, the glider is momentarily at rest at its maximum positive displacement.
What is the equation for the displacement x x\,x of the glider in metres from its equilibrium position at time ttt?
0.12sin(1.25πt)0.12 \sin(1.25\pi t)0.12sin(1.25πt)
0.12cos(1.25πt)0.12 \cos(1.25\pi t)0.12cos(1.25πt)
0.24cos(1.25πt)0.24 \cos(1.25\pi t)0.24cos(1.25πt)
0.12cos(1.25t)0.12 \cos(1.25 t)0.12cos(1.25t)
39 exam-style questions on OCR A A Level Physics Oscillations, covering Simple harmonic oscillations, Energy of a simple harmonic oscillator, and Damping. Each one has a worked solution and a mark scheme showing where the marks go.