A building warehouse in Down Town Johannesburg has light fixtures consisting of light bulbs with shades hanging from a high ceiling at the end of light, thin cords 186.46 cm long. The light fixtures have a mass of 9.81 kg. An old mineshaft collapse triggers a minor tremor and the light fixtures begin to oscillate with a constant period for the duration of the tremor. How many swings per second will these fixtures make? State your answer to within 2 decimal points. Use a period (full stop) for the decimal point. Do not include units in your answer. Type your answer..
Simple harmonic motion
Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.
Simple Pendulum
A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.
Oscillation
In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.
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