Which type of forces creates contact between surfaces?

Frictional Force: Frictional force is the force caused by the relative motion of two surfaces that come into contact with each other.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

the answer is a. hope this .