A pendulum on the surface of Mars consists of a string of length of 2.5 m and a mass of 1.75 kg. It is oscillating in such a way that its maximum height is 0.35 m (if we say the height at its lowest point is zero). The acceleration due to gravity on the surface of Mars is 3.7 m/s². 1) How much time does the pendulum take to complete one full oscillation? 2) What is the total mechanical energy of the pendulum? 3) What is the maximum speed that the mass on the pendulum reaches during its oscillations? 4) What is the minimum speed that the mass on the pendulum reaches during its oscillations? 5) What is the speed of the mass on the pendulum when it is at a height of 0.25 m?
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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