Question of class IX

Asked by  | 17th Nov, 2008, 07:46: PM

Expert Answer:

Let motion of particle be:

x=Awcoswt

As per question we have,

P.E=K.E

1/2mw2 A2 cos2wt=1/2mw2 A2 sin2wt

Hence sinwt=coswt=(1/2)0.5

Hence x=A/(2)0.5

Hence correct option is D.

Answered by  | 30th Nov, 2008, 02:11: PM

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