Question

Which of the following functions represent S.H.M.

• A. t + sin ωt
• B. sin²ωt
• C. sinωt+ 2cos ωt
• D. sin ωt + cos 2ωt

Answer 1

Answer: (C)

sinωt+ 2cos ωt

Answer 2

The motion will be SHM only if acceleration (or $\frac{d^{2}y}{dt^{2}}$α - y)

This is true for (3)