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Questions  

Which one of the following statements is true for the speed v and the acceleration a of a particle executing simple harmonic motion

a
When v is maximum, a is maximum
b
Value of a is zero, whatever may be the value of v
c
When v is zero, a is zero
d
When v is maximum, a is zero

detailed solution

Correct option is D

In S.H.M.  v=A2−y2 and  a=− ω2y when   y=A ⇒vmin=0  and  amax= − ω2A

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A horizontal platform with an object placed on it is executing S.H.M. in the vertical direction. The amplitude of oscillation is 3.92×103m . What must be the least period of these oscillations, so that the object is not detached from the platform 


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