A point mass oscillates along the x-axis according to the law x=x0cos ωt-π4. If the acceleration of the particle is written as a=A cos ωt+δ,then :

# A point mass oscillates along the x-axis according to the law . If the acceleration of the particle is written as then :

1. A

$\mathrm{A}={\mathrm{x}}_{\mathrm{o}}{\mathrm{\omega }}^{2},\mathrm{\delta }=\frac{3\mathrm{\pi }}{4}$

2. B

$\mathrm{A}={\mathrm{x}}_{\mathrm{o}},\mathrm{\delta }=-\frac{\mathrm{\pi }}{4}$

3. C

$\mathrm{A}={\mathrm{x}}_{\mathrm{o}}{\mathrm{\omega }}^{2},\mathrm{\delta }=\frac{\mathrm{\pi }}{4}$

4. D

$\mathrm{A}={\mathrm{x}}_{\mathrm{o}}{\mathrm{\omega }}^{2},\mathrm{\delta }=-\frac{\mathrm{\pi }}{4}$

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