9. A 1.65 kg box rests on a plank that is inclined at an angle of 68.0° above the horizontal. The upper end of the box is attached to a spring with a force constant of 18.0 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.28, what is the maximum amount the spring can be stretched and the box remain at rest? m 19. 50 - 160 ssf60 ssf60 ss$60 ssf60 ssf60 ssf60 ssf60 ssfóð ssf60 ssf 50 ssf60 ssf60 ssi 0000000000000000000 $160 160 ssf60 ssf60 ssf60° ssf60 ssf60 s 50 f60sf60 ssf60 ssf60 ssf60
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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9. A 1.65 kg box rests on a plank that is inclined at an angle of 68.0° above the horizontal. The upper end of the box is
attached to a spring with a force constant of 18.0 N/m, as shown in the figure. If the coefficient of static friction between
the box and the plank is 0.28, what is the maximum amount the spring can be stretched and the box remain at rest?
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