A particle performing SHM is at the positive extreme at t = 0. If amplitude is A and angular frequency is ω, which equation represents its motion?
Options

Question

A particle performing SHM is at the positive extreme at t = 0. If amplitude is A and angular frequency is ω, which equation represents its motion?

G1 Physics · Accepted Answer

At t=0 the particle is at the positive extreme, x=A. In x=A sin(ωt+φ), this requires sinφ=1, so φ=π/2. Hence x=A sin(ωt+π/2). Correct option: 3.