Part A:
The position of a 55 g oscillating mass is given by x(t)=(2.0cm)cos(10t), where t is in seconds. Determine the velocity at t=0.40s.
Express your answer in meters per second to two significant figures.
Part B:
Assume that the oscillating mass described in Part A is attached to a spring. What would the spring constant k of this spring be?
Express your answer in newtons per meter to two significant figures.
Part C:
What is the total energy E of the mass described in the previous parts?
Express your answer in joules to two significant figures.
The position of oscillating mass is given by
Velocity of the function
Time t=0.40
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Part B
Angular frequency in simple harmonic function [x(t)=Acos(wt)]
so
m=55g=0.055kg
Squaring both sides
N/m
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Part C
From the position function
maximum amplitude can be given by
Total energy of mass
(KE=0 at maximum x_max because velocity is zero)
J
Part A: The position of a 55 g oscillating mass is given by x(t)=(2.0cm)cos(10t), where t...
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