A mass of 2 kg is hung from a steel wire (of diameter 1.0 mm and length 3 m) attached to the ceiling. What is the extension of the wire? (Y for steel is 20*1010) a) 0.094 mm b) 0.187 mm c) 0.374 mm In the problem above, what should be the minimum radius of the wire so that the elastic limit (2.4*108 Pa) is not exceeded? a) 0.08 mm b) 0.16 mm c) 0.32 mm
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.
A mass of 2 kg is hung from a steel wire (of diameter 1.0 mm and length 3 m) attached to the ceiling. What is the extension of the wire? (Y for steel is 20*1010)
a) 0.094 mm
b) 0.187 mm
c) 0.374 mm
In the problem above, what should be the minimum radius of the wire so that the elastic limit (2.4*108 Pa) is not exceeded?
a) 0.08 mm
b) 0.16 mm
c) 0.32 mm
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