A point mass oscillates along the x-axis according to the law \(x = {x_0}\cos \left( {ω t - \frac{\pi }{4}} \right) \). If the acceleration of the particle is written as a = A cos(ωt - δ), then
1
\(A = {x_0}{\omega ^2},\delta = \frac{{ - 3\pi }}{4}\)
2
\(A = {x_0},\delta = -\frac{{\pi }}{4}\)
3
\(A = {x_0}{\omega ^2},\delta = \frac{{\pi}}{4}\)
4
\(A = {x_0}{\omega ^2},\delta = \frac{{3\pi }}{4}\)