1). You would like to use a simple pendulum to determine the local value of the
ID: 2260778 • Letter: 1
Question
1). You would like to use a simple pendulum to determine the local value of the acceleration due to gravity, g. Consider the following parameters:
In the graph below F is the force needed to stretch a spring and x is the displacement of the spring from the equilibrium position. What is the force constant of the spring, in N/m ?
You would like to use a simple pendulum to determine the local value of the acceleration due to gravity, g. Consider the following parameters: pendulum length, mass of the object at the free end of the pendulum, the period of the pendulum as it swings in simple harmonic motion, the amplitude of the motion. Which of these parameters must be measured to find a value for g? In the graph below F is the force needed to stretch a spring and x is the displacement of the spring from the equilibrium position. What is the force constant of the spring, in N/m ?Explanation / Answer
1)
Length
Period T
T = 2*pi*sqrt (L/g)
2)
k = F / x = 15 / 10 = 1.5 N / cm = 150 N/m
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