A body of mass 5 kg moving with a uniform speed 3√2 ms⁻¹ in X – Y plane along the line y = x + 4. The angular momentum of the particle about the origin will b e ______ kg m²s⁻¹.

Question

G1 Physics · Accepted Answer

y – x – 4 = 0 dₗ is perpendicular distance of given line from origin. dₗ = |–4|/√(1² + 1²) = 2√2 m So, |L⃗| = mvdₗ = 5 × 3√2 × 2√2 kg m²/s = 60 kg m²/s