A particle of mass `1 kg` is moving alogn the line `y=x+2` with speed `2m//sec`. The magnitude of angular momentum of the particle about the origin is

Options

A. `4 kg-m^(2)//sec`
B. `2sqrt(2)kg-m^(2)//sec`
C. `4sqrt(2)kg-m^(2)//sec`
D. `2kg-m^(2)//sec`

Answer

B

Explanation

`L=mvr_(bot)=1(2)(2cos45^(@)=2sqrt(2)`