1.

A torque tau on a body about a given point is found to be equal to vec(C)xxvec(L), where vec(C) is a constant vector and vec(L) is the angular momentum of the body about point. From this, its follows that

Answer»

`VEC(L)` Does not change with time
`(DVEC(L))/(dt)` is perpendicular to `vec(L)` at all instants of time
The MAGNITUDE of `vec(L)` does not CHNGE with time
All the above

Answer :B::C


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