Four people enter a 1,950 kg car and discover that this compress the car's springs by an additional 0.70 cm. Together the people have a mass of 315 kg. (a) If we pretend that the car's suspension consists of one spring, then we can calculate its effective spring constant, k. What is the value of k (in N/m) for this car? N/m (b) The four people exit the car. They push down upon it once and then release it. This causes the car to undergo simple harmonic motion. What is the frequency (in Hz) of this vibrating motion? Hz
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.
1,950 kg car
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