The acceleration due to gravity in this problem is taken to be g = 9.80 m/ s2 , unless otherwise specified. Some people think a pendulum with a period of 1.00 s can be driven with “mental energy” or psycho kinetically, because its period is the same as an average heartbeat. True or not, what is the length of such a pendulum?
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.
The acceleration due to gravity in this problem is taken to be g = 9.80 m/ s2 , unless otherwise specified.
Some people think a pendulum with a period of 1.00 s can be driven with “mental energy” or psycho kinetically, because its period is the same as an average heartbeat. True or not, what is the length of such a pendulum?
The acceleration due to gravity is g=9.8 m/s2.
Given the time period of the pendulum is T=1s
Average person heart beats in 1 min=72 times
Heart beat in 60 sec=72 times
Heart complete 1 beat in 60/72 sec.
Time required for heart beat to complete one oscillation or the time period of the heart beat is 0.83 s.
Which is very less compare to the time period of the given pendulum.
Time period of beat << time period of given pendulum.
Hence, the statement given is not true.
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