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A particle of mass m = 5 unit is moving ...

A particle of mass `m = 5` unit is moving with a uniform speed `v = 3 sqrt(2)` unit `XY` plane aong the line `Y = X + 4`. The magnitude of the angular momentum about origin is

A

Zero

B

`60` units

C

`75` units

D

`40sqrt(2)` units

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaOAC`
`d=OC sin 45^(@)=4xx(1)/(sqrt(2))=2sqrt(2)`
`L=Pxxd=5xx3sqrt(2)xx2sqrt(2)`
= `60` units
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