-The velocity of a simple harmonic oscillator is given by v = -7.93sin(29.4t) (mks units) What is its angular frequency?
-What is the amplitude of the motion in Problem 1 in meters to two decimal places?
-To the nearest hundredth of a meter where is the mass in Problem 1 at the time t = 22.64 seconds?
-If the mass in Problem 3 is 0.34 kg, what is the spring's potential energy to the nearest tenth of a joule?
-What is its kinetic energy to the nearest tenth of a joule?
The general equation for the simple harmonic oscillator is,
v = -Awsinwt
here, A is amplitude, w is angular frequenct, and t is the time.
1.
The angular frequency is: 29.4 rad/s
2.
The amplitude of the oscillator is: A = 7.93 / w = 7.93 /29.4 = 0.2697 m = 0.27 m
3.
The general equation for the displaceemnt of the oscillator is,
x = Acoswt = 0.27cos29.4*22.64 = 0.248 m
4.
The spring constant is,
k = w2m = 29.4*29.4*0.34 = 293.8824 N/m = 294 N/m
potential energy is,
PE = 0.5kx2 = 0.5*294*0.248*0.248 = 9.04 J
5.
The velocity is,
v = -7.93sin(29.4t) = -7.93sin(29.4*22.64) = 3.1 m/s
The kinetic energy is,
K = 0.5mv2 = 0.5*0.34*3.1*3.1 = 1.63 J
-The velocity of a simple harmonic oscillator is given by v = -7.93sin(29.4t) (mks units) What...
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