Q6)A 2.4kg book is resting on a horizontal desk. The coefficients of static and kinetic friction between the book and the table are 0.45 and 0.34 correspondingly. If a spring with spring constant of 48N/m pulls horizontally on the book, moving it across the table with a constant forward velocity of 0.47 m/s, how much does the spring stretch?
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.
![12:03 PM Tue Oct 17
Cut
m= 2.4kg
HK = 0.34
Copy
Ms = 0.45
K = 48 N/m
V = 0·47m/s
?
X=
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Q6)A 2.4kg book is resting on a horizontal desk. The coefficients of static and kinetic friction between
the book and the table are 0.45 and 0.34 correspondingly. If a spring with spring constant of 48N/m
pulls horizontally on the book, moving it across the table with a constant forward velocity of 0.47 m/s,
how much does the spring stretch?
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