Pendulum and Spring Questions
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____ 1. A simple pendulum, 2.0 m in length, is released with a push when the support string is at an angle
of 25 deegree from the vertical. If the initial speed of the suspended mass is 1.2 m/s when at the release
point, what is its speed at the bottom of the swing? (g = 9.8 m/s2)
a. 2.3 m/s
b. 2.6 m/s
c. 2.0 m/s
d. 1.8 m/s
e. 0.5 m/s
____ 2. A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then
compressed a distance d and is used to launch a mass m along the frictionless surface. What
compression of the spring would result in the mass attaining double the speed received in the
above situation?
a. 1.41 d
b. 1.73 d
c. 2.00 d
d. 4.00 d
e. 5.35 d
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The solution answers two questions on pendulums and springs using Hooke's law.
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____ 1. A simple pendulum, 2.0 m in length, is released with a push when the support string is at an angle of 250 from the vertical. If the initial speed of the suspended mass is 1.2 m/s when at the release point, what is its ...
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