Question

What equation in rotational motion is the equivalent of Newton’s second law in its translational form F = ma? Give the meaning of each symbol in the equation and state which rotational quantities are analogous to which linear quantities.

Answer 1

The equation in rotational motion that is equivalent to Newton’s second law in its translational form F = ma is τ = Iα.

Step-by-step explanation:

The equation in rotational motion that is equivalent to Newton’s second law in its translational form F = ma is τ = Iα. In this equation, τ represents torque, which is analogous to force in translational motion. I represents the moment of inertia or rotational inertia, which is analogous to mass. And α represents angular acceleration, which is analogous to translational acceleration.