Question

The lagrangian is defined as:

(a) a.

Answer 1

It appears that the question and answer choices are still incomplete. I’ll provide the standard definition of the Lagrangian below:

In physics, the Lagrangian $L$ is defined as:

$$L=T-V$$

where:

• $T$ is the kinetic energy of the system,
• $V$ is the potential energy of the system.

This formulation is central to Lagrangian mechanics. It is used to derive the equations of motion by applying the Euler-Lagrange equations in the principle of least action.

If you can provide complete answer options, I’d be glad to help you further!