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A particle of mass 1 kg is projected at an angle θ with horizontal. Its co-ordinates...

A particle of mass 1 kg is projected at an angle θ with horizontal. Its co-ordinates at any instant are (5m, 5m) and it is having velocity components along X-axis and Y-axis as 8 m/s and 4 m/s respectively. Its angular momentum about origin is

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