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A body A, oFIGURE m=0.1 kg has a initial...

A body A, oFIGURE m=0.1 kg has a initial velocity oFIGURE`3hatikms^(-1)`. It collides elastically with another body. B oFIGURE the same mass which has an initial velocity oFIGURE `5hatjms^(-1)`. AFIGUREter collision, A moves with a velocity `vec(v)=4(hati+hatj)`. The energy oFIGURE B aFIGUREter collision is written as `(x)/(10)J`. The value oFIGURE x is _.

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