Question

The torque tau on a body about a given point is found to be equal to A x L, where A is constant vector and L is the angular momentum of the body that point. From this, it follows that

Answer 1

Answer:

Explanation:

dLdt is perpendicular to L at all the instant of time

the component of L in the direction of A does not change with time

The magnitude of L does not change with time

all of the above

Solution :

c) ∴ ρ=A×L or dLdt=A×L

i.e,. dLdt is always perpendicular to L

And also A

From Eq. (i) , dLdt = Alsinθ …………..(ii)

The component of L in the direction of A (Lcosθ) will not change with time. And also torque is perpendicular to L, hte magnitude of L will not change with time

Answer 2

Answer:

A is constant that means it cannot change

and l is angular momentum .so the answer will not change .. hope this helps you..