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A particle of mass 2 kg is moving such that at...

This question belongs to Engineering Physics Classical Mechanics
Classical Mechanics
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A particle of mass 2 kg is moving such that at time t second. Its position in metre is given by $$\overrightarrow {\bf{r}} \left( t \right) = 5{\bf{\hat i}} - 2{t^2}{\bf{\hat j}}.$$    The angular momentum of the particle at t = 2 s about the origin in kg-m2/s, is

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Correct Answer: Option B
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