Constants I Period A physical pendulum consists of an 85-cm-long, 240-g-mass, uniform wooden rod hung from a nail near one end. The motion is damped because of friction in the pivot; the damping force is Part A If the angular displacement can be written as 0 = Aet cos w't, find y. approximately proportional to d0 / dt. The rod is set in oscillation by displacing it 15 ° from its equilibrium position and releasing it. After 9.0 s , the amplitude of the oscillation has been reduced to 5.7 °. (Figure 1) Express your answer using two significant figures. Hνα ΑΣφ ? s-1 Figure < 1 of 1 Submit Request Answer Part B If the angular displacement can be written as 0 = Ae cos w't, find the approximate period of the motion. Express your answer using two significant figures. 85 cm ? T = 15° Submit Request 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.
Need help with part A and B and C pls.
Part C asks: If the
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