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EXAMPLE 8-9 A swinging pendulum. The simple pendulum shown in Fig. 8-14 consists of a small bob of mass m suspended by a massless cord of length l. The bob is released (without a push) at t = 0, where the cord makes an angle ? = ?? to the vertical. (a) Describe the motion of the bob in terms of kinetic energy and potential energy. Then determine the speed of the bob (b) as a function of position ? as it swings back and forth, and (c) at the lowest point of the swing. (d) Find the tension in the cord, F?. Ignore friction and air resistance.

          EXAMPLE 8-9 A swinging pendulum. The simple pendulum shown in Fig. 8-14 consists of a small bob of mass m suspended by a massless cord of length l. The bob is released (without a push) at t = 0, where the cord makes an angle ? = ?? to the vertical. (a) Describe the motion of the bob in terms of kinetic energy and potential energy. Then determine the speed of the bob (b) as a function of position ? as it swings back and forth, and (c) at the lowest point of the swing. (d) Find the tension in the cord, F?. Ignore friction and air resistance.

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EXAMPLE 8-9 A swinging pendulum. The simple pendulum shown in Fig. 8-14 consists of a small bob of mass m suspended by a massless cord of length l. The bob is released (without a push) at t = 0, where the cord makes an angle ? = ?? to the vertical. (a) Describe the motion of the bob in terms of kinetic energy and potential energy. Then determine the speed of the bob (b) as a function of position ? as it swings back and forth, and (c) at the lowest point of the swing. (d) Find the tension in the cord, F?. Ignore friction and air resistance.

Added by Anna Y.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Khoobchandra Agrawal

11/17/2021

Step 1

Step 1: The potential energy of the simple pendulum at its initial position is given by \(PE = mgh = mgL(1 - \cos \theta)\), where \(m\) is the mass of the pendulum, \(g\) is the acceleration due to gravity, \(L\) is the length of the pendulum, and \(\theta\) is Show more…

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