To measure the magnitude of the acceleration due to gravity g in an unorthodox manner, a student places a ball bearing on the concave side of a flexible speaker cone ( Figure 1). The speaker cone acts as a simple harmonic oscillator whose amplitude is A and whose frequency f can be varied. The student can measure both A and f with a strobe light. Take the equation of motion of the oscillator as y(t) = A cos (wt + p), where w 2πf and the y axis points upward. If the ball bearing has mass m, find N (t), the magnitude of the normal force exerted by the speaker cone on the ball bearing as a function of time. Your result should be in terms of A, either f (or w), m, g, a phase angle o, and the constant . ► View Available Hint(s) N (t) = IVE ΑΣΦ ?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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To measure the magnitude of the acceleration due to
gravity g in an unorthodox manner, a student places a ball
bearing on the concave side of a flexible speaker cone (
Figure 1). The speaker cone acts as a simple harmonic
oscillator whose amplitude is A and whose frequency f
can be varied. The student can measure both A and f
with a strobe light. Take the equation of motion of the
oscillator as
y(t) = A cos (wt + o),
where w= 2πf and the y axis points upward.
Part A
If the ball bearing has mass m, find N (t), the magnitude of the normal force exerted by the speaker cone on the ball bearing
as a function of time.
Your result should be in terms of A, either f (or w), m, g, a phase angle, and the constant .
► View Available Hint(s)
N (t) =
V—| ΑΣΦ
2
?
Transcribed Image Text:To measure the magnitude of the acceleration due to gravity g in an unorthodox manner, a student places a ball bearing on the concave side of a flexible speaker cone ( Figure 1). The speaker cone acts as a simple harmonic oscillator whose amplitude is A and whose frequency f can be varied. The student can measure both A and f with a strobe light. Take the equation of motion of the oscillator as y(t) = A cos (wt + o), where w= 2πf and the y axis points upward. Part A If the ball bearing has mass m, find N (t), the magnitude of the normal force exerted by the speaker cone on the ball bearing as a function of time. Your result should be in terms of A, either f (or w), m, g, a phase angle, and the constant . ► View Available Hint(s) N (t) = V—| ΑΣΦ 2 ?
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