PHYS 101 Lecture Notes - Particle Velocity, Longitudinal Wave, Epicenter
26 Jun 2012
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PHYS 101 Full Course Notes
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The period of a pendulum depends on: its length and g: displacement along arc, restoring force, but for small angles, the period t will be: It will go until all potential energy is reclaimed. Therefore it would undergo simple harmonic motion through the centre of the earth. After jumping, he oscillates, hitting low point 8 times in 38. 0 seconds. What is k and unstretched length of the cord: t = 38/8, f = 1/t = 8/38, f = 1/2pi(sqrt(k/m), k = (2pif)^2 * m, k = 114 n/m. Phys 101 alanna houston: mg = kx, x = mg/k, x = (65*9. 8)/114 = 5. 6 m, 25 5. 6 = length, length of cord = 19. 4 m. Example: what length of pendulum is necessary for a swing every second; ie. t = 2. 0s: 2. 0 = 2pi(sqrt(l/g), l = (1/pi)^2 * g, 9. 8/pi^2 = 0. 993 m. Shm (springs and pendulums) have natural oscillation frequencies:
