The oscillation of body on a smooth horizontal surface is represented by the equation, x=Acos(ωt)
Where x= displacement at time t ω= frequency of oscillation
Which one of the following graphs shows correctly the variation ′a′ with ′t′?
A
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B
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C
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D
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Solution
The correct option is C Displacement, x=Acos(ωt)
Velocity, v=dxdt=−Aωsin(ωt)
Acceleration, a=dvdt=−Aω2cos(ωt)
Hence C is the correct option.