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BITSAT 2016
Exam
BITSAT
Year
2016
Subject
Physics
Chapter
Oscillations

BITSAT 2016 · Physics · Oscillations

A point particle of mass 0.1 ~kg is executing S.H.M. of amplitude...

A point particle of mass 0.1 kg0.1 \mathrm{~kg} is executing S.H.M. of amplitude of 0.1 m0.1 \mathrm{~m}. When the particle passes through the mean position, its kinetic energy is 8 ×10−3\times 10^{-3} Joule. Obtain the equation of motion of this particle if this initial phase of oscillation is 45∘.45^{\circ} .

Options

  1. Ay=0.1sin⁡(±4t+π4)y=0.1 \sin \left(\pm 4 t+\frac{\pi}{4}\right)
  2. By=0.2sin⁡(±4t+π4)\quad y=0.2 \sin \left(\pm 4 t+\frac{\pi}{4}\right)
  3. Cy=0.1sin⁡(±2t+π4)y=0.1 \sin \left(\pm 2 t+\frac{\pi}{4}\right)
  4. Dy=0.2sin⁡(±2t+π4)y=0.2 \sin \left(\pm 2 t+\frac{\pi}{4}\right)

Correct answer

A. y=0.1sin⁡(±4t+π4)y=0.1 \sin \left(\pm 4 t+\frac{\pi}{4}\right)

Step-by-step solution

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