Given: F = force of weight = m g m = mass g = grav. acceleration FS = force on a spring = k x x = distance a spring stretches k = spring constant (unknown) Observation: When a known mass of m1 is suspended from the bottom of a particular spring, exerting a measured force of F1, the spring stretches a measured distance of x1.
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.
Given:
- F = force of weight = m g
- m = mass
- g = grav. acceleration
- FS = force on a spring = k x
- x = distance a spring stretches
- k = spring constant (unknown)
Observation:
When a known mass of m1 is suspended from the bottom of a particular spring, exerting a measured force of F1, the spring stretches a measured distance of x1.
Question:
If a second known mass, m2 is added to the first mass at the bottom of the spring (so that both masses are hanging from the spring at the same time), which of the following equations will identify the new distance the spring will stretch?
(Hint: Will it be more or less than the old distance?)
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