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A particle of mass 1kg is moving along the line y=x+2 with speed 2m/s. The magnitude of angular momentum of particle about origin is??
Dear Sai,
y = x + 2r = x i, x + 2 jv = sqrt(2) * (i + j)angular momentum = r X mv = 1 * sqrt(2){(x i + (x + 2) j ) X (i + j) } = sqrt(2) (x k - x + 2k) = -2 sqrt(2) k
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