Question

A particle of mass m=5 units is moving with a uniform
speed v=3V2 m in the XOY plane along the line
Y = X + 4. The magnitude of the angular
momentum of the particle about the origin is
(1) Zero
(2) 60 unit
(3) 7.5 unit
(4) 40/2 unit​

Answer 1

Answer:

(2) 60 unit

Explanation:

L = mvr

= 5 x 3√2 x 4 x cos45°

= 60√2 x 1\√2

L = 60 units .

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