When a mass is rotating in a plane about a fixed point, its angular momentum is directed along.

Options

A. A line perpendicular to the plane of rotation
B. The line making an angle of `45^(@)` to the plane of rotation
C. The radius
D. The tangent to the orbit

Answer

A

Explanation

`L=m(vec(r)xxvec(v)), vec(L)_|_vec(r)"and"vec(L)_|_vec(v)`
`_|_^(r)` to the plane of rotation .