1.

The displacement of a particle executing SHM is given by x = 0.10 sin ((2pit)/(T)+phi)where all the quantities are in SI units. The time period of vibration is 3s. At t = 0, the particle is displaced by 0.05m. Findthe phase angle corresponding to 0.0866 m

Answer»

Solution :For the particle in SHM,
the displacement ,
`x= 0.10sin((2pit)/(T)+phi)`
`= 0.10sin((2pi)/(3)t+phi)( :.T=3s)`
substituting x= 0.0866m in
`x= 0.10sin((2pi)/(3)t+phi)`
`0.0866= 0.10 sin ((2pi)/(3)t+phi)`
`sin((2pi)/(3)t+phi)=(0.0866)/(0.10)= 0.866`
`:.`PHASE angle `((2pi)/(3)t+phi)= (PI)/(3)` radian or `60^(@)`


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