I need solution for this question please Q3:- True and False. Answer all of the following: (15M)
1- Degrees of the freedom of a system might be dependent on number of the masses involved in system itself.

2- The translational and rotational motions of a mass means it is requires two coordinates to describe its motion.

3- Mass moment of inertia of a system move in general plane motion is calculated at it center
when the KE is required.

4- Any vertical link of mass (m) and length (l) has an effective stiffness equal to (mgl/2).

5- Direction of motion of masses and springs are important when the K. E and P. E
are required.