1.

Consider two identical masses m attached to 3 identical spring as shown in the figure. They can be set in motion in two different ways as follows : (I) x_(1)(t)=x_(0)cos omega t and x_(2)(t)=x_(0)cos omega t (II) x_(1)=(t)=x_(0)cos omega t and x_(2)(t)=-x_(0)cos omega t Here x_(1)(t) and x_(2)(t) denote the displacements from the unstreched positions. Then the potential energy stored in the system is

Answer»

LARGER for I than II at t = 0
larger for I than II at `t=pi//omega`
EQUAL for I and II at t = 0
smaller for I than II at `t=2pi//omega`

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