What is kinematics ?
explain ~

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.

and/or

Kinematics is the study of motion of a system of bodies without directly considering the forces or potential fields affecting the motion. In other words, kinematics examines how the momentum and energy are shared among interacting bodies.

Kinematics is the branch of physics in which we study the motion of an object without studying the cause of it's motion.

have a good day Sir

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

i think it would be 5