A point mass is subjected to two simultaneous sinusoidal displacements in x-direction, x 1 (t) = A sin ꞷt and x 2 (t) = A sin 
. Adding a third sinusoidal displacement x 3 (t) = B sin (ꞷt + ɸ) brings the mass to a complete rest. The values of B and ɸ are
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
So B = A, ɸ = 240° = 
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