A point mass is subjected to two simultaneous sinusoidal displacements in x−direction,x1(t)= A sin (ω)t and x2(t) = A sin(ωt+2π/3). Adding a third sinusoidal displacement x3(t)=Bsin(ωt+ϕ) brings the mas to a complete rest. The values of (B) and (phi) are. A point mass is subjected to two simultaneous sinusoidal displacements in x−direction x1(t)= A sin [...]