Two sinusoidal waves of the same peripd with amplitude of 5 and 7mm
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A = √ {a1^2 + a2^2 + 2a1 a2 cos (φ1-φ2)
tan φ= [a sin φ1 + a2 sin φ2] / a cos φ1 + a2 cos φ2
Given a1 = 8 and a2 10.5 and φ2= 0 A =17.239mm
17.239 = √ {8 ^2 + 10.5 ^2 + 2* 8*10.5 cos (φ1)}
cos (φ1) = 0.731745
φ1 = 42.97° or 0.75 radian
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Best Answer
A = √ {a1^2 + a2^2 + 2a1 a2 cos (φ1-φ2)
tan φ= [a sin φ1 + a2 sin φ2] / a cos φ1 + a2 cos φ2
Given a1 = 8 and a2 10.5 and φ2= 0 A =17.239mm
17.239 = √ {8 ^2 + 10.5 ^2 + 2* 8*10.5 cos (φ1)}
cos (φ1) = 0.731745
φ1 = 42.97° or 0.75 radian
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plzzz do mark as brainliest
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