Question 4. What is simple pendulum? Diaframmatically show the forces acting on simble pendulum. Also show that simple pendulum executes simple harmonic motion. Answer: Simple Pendoulum: pendulum is an ideslized A simple consisting of 8 point mass (bob) suspended by a weightless inextensible string supported from \& fixed frictionless Explanation: from mean position "P "Pendul um position " \( Q \) " and then release, it swings back and forth by making small angle " \( \theta \) ". If wre neglect The air drag and friction at the are periodic and it performs simple harmonic motion.
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Forces Acting on a Simple Pendulum: There are two forces acting on the bob of a simple pendulum. One is the gravitational force (mg) acting vertically downwards and the other is the tension (T) in the string acting along the string towards the point of suspension. Show more…
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Conceptual questions. A pendulum swings back and forth, as shown in Figure $5-17$ Does the tension force in the string do work on the pendulum bob? Does the force of gravity do work on the bob? Explain your answers.
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A simple pendulum consists of a point mass $m$ suspended by a weightless cord of length $l .$ Find the equation of motion of the pendulum, that is, the differential equation for $\theta$ as a function of $t .$ Show that (for small $\theta$ ) this is approximately a simple harmonic motion equation, and find $\theta$ if $\theta=\theta_{0}, d \theta / d t=0$ when $t=0$.
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