# Answer to Question #57512 in Mechanics | Relativity for Misha Jain

Question #57512

A particles of mass m = 5 units is moving with a uniform speed v = 3 * root 2 present in the XOY plane along the line Y = X + 4. What is the magnitude of the angular momentum of the particle about the origin?

Expert's answer

Angular momentum of particle L=mv*r_⊥

m=5units

v=3√2

r_⊥- length of the altitude from origin to (y=4+x)

r_⊥=2√2, then

L=mv*r_⊥=5*3√2*2√2=60

answer: 60

m=5units

v=3√2

r_⊥- length of the altitude from origin to (y=4+x)

r_⊥=2√2, then

L=mv*r_⊥=5*3√2*2√2=60

answer: 60

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