MHT CET202523 Apr 2025Evening ShiftPhysicsOscillationsActual
The motion of the particle is given by the equation x=A t+B t . The motion of the particle is
Options
- Asimple harmonic with amplitude (A+B)
- Bsimple harmonic with amplitude (A-B)
- Csimple harmonic with amplitude (A^2+B^2 )^ 1 2
- Dnot simple harmonic
Correct answer
C. simple harmonic with amplitude (A^2+B^2 )^ 1 2
Step-by-step solution
The equation of motion x = A t + B t represents the superposition of two simple harmonic motions with identical angular frequency . This expression can be transformed into the standard simple harmonic form x = R ( t + ) by applying the trigonometric identity (X + Y) = X Y + X Y , yielding x = R t + R t . Matching coefficients with the original equation gives A = R and B = R . Squaring and adding these equations results in A^2 + B^2 = R^2 ^2 + R^2 ^2 = R^2( ^2 + ^2 ) = R^2 , since ^2 + ^2 = 1 . Therefore, the amplit