Which of the following statements is true about the swinging pendulum i The

# Which of the following statements is true about the

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23.Which of the following statements is true about the swinging pendulum?i.The greatest restoring force and the greatest potential energy occur at the same point ii.The greatest restoring force and the greatest kinetic energy occur at the same point iii.The greatest acceleration and the greatest kinetic energy occur at the same point A)I only B)I and II only C)II only D)II and III only E)I, and III 24. If the pendulum is length is taken to another planet where the gravitational acceleration is one fourth that of the earth, what will happen to the period of a simple pendulum? 21
25.A pendulum is timed as it swings back and forth. A stop watch is started when the bob is at the left end of its swing. When the bob returns to the left end for the 60th return, the clock reads 80 s. What is the period of vibration? 26.What is the frequency of the pendulum in question 25 above? A)0.0167 Hz B)0.0125 Hz C)12.66 Hz D)0.75 Hz E)None of these. 2 1
Questions 27 30: A 10 g mass vibrates in the x-direction without friction at the end of a massless horizontal spring for which k = 10 N/m. The mass is displaced 5 cm from equilibrium and released. 27.The angular frequency of the mass is 28.The total energy of the mass is 29.The acceleration when mass 10 g is at equilibrium position is: A) 0 m/s2B) 40 m/s2C) 50 m/s2D) 5 m/s E) None of these
30. The kinetic energy when mass 10 g is at equilibrium position is: 00000000000000000000000000000000 THE END 0000000000000000000000000
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