A simple pendulum is suspended from the ceiling by means of a string of length 1.92 m. Assume that there is no friction or air resistance. Suppose you were to release the pendulum from rest, starting from an angle of 44.7 degrees with respect to the vertical, as shown. What will be the speed of the pendulum at the instant it swings through its lowest point (that is, when it s momentarily hanging vertically)?
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A simple pendulum is suspended from the ceiling by means of a string of length 1.92 m. Assume that there is no friction or air resistance. Suppose you were to release the pendulum from rest, starting from an angle of 44.7 degrees with respect to the vertical, as shown. What will be the speed of the pendulum at the instant it swings through its lowest point (that is, when it s momentarily hanging vertically)?
a. 3.30 m/s
b. 5.17 m/s
c. 6.14 m/s
d. 1.98 m/s
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OK, once again we have a pendulum, this time of length 1.18 m, which you release from rest at an angle of 32.3 degrees to the vertical. What will be the speed of the pendulum at the instant it reaches an angle of 19.4 degrees above the vertical?
a. 1.51 m/s
b. 1.89 m/s
c. 1.15 m/s
d. 2.84 m/s
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