3A60.40 D
RIVEN
M
ASS ON A
S
PRING
Shows phase shift between driving force and mass above and below resonant frequency.
Set generator amplitude at 25%.
F(0) = 0.90Hz
F(90) = 0.95Hz (resonant freq.)
F(180) = 0.99Hz
(use 2.5 cm light duty spring and special 100 g mass with closed hook)
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