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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

`40 sqrt2` units

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta OAC`
`d= OC sin 45^(@) = 4 xx (1)/(sqrt2) = 2 sqrt2`
`L= P xx d= 5 xx 3 sqrt2 xx 2 sqrt2` = 60 units
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