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Questions  

Two simple harmonic motions are represented by equations

y1 = 4 sin(10t+)    y2 = 5 cos 10t 

What is the phase difference between their velocities?

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a
b
-∅
c
(∅ + π2)
d
(∅-π2)

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detailed solution

Correct option is D

y1  = 4 sin (10t + ∅)           y2 = 5 cos 10t           v1 = dy1dt = 40 cos(10t+∅)            v2 = dy2dt = -50 sin 10t = 50 cos(10t+π2)Phase difference between v1 and v2 = (∅-π2)


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