a 2.0-kg hoop with radius of 1-m rolls without slipping on a horizontal surface so that its center proceeds to the right with a constant linear speed of 6.0 m/s. moment of inertia (also known as rotational inertia) for a hoop: mr2 a) what is the translational kinetic energy of the hoop? (2 pts) b) what is the rotational kinetic energy of the hoop? (2 pts) c) what is the total kinetic energy of the hoop? (1 pt)