Question

when present on a moving object, which forces always push opposite the direction the object is moving? choose all answers that apply: a friction b air resistance c normal force d gravity e tension

Explanation:

Friction and air - resistance are resistive forces. They always act in the direction opposite to the motion of the object. The normal force acts perpendicular to the surface of contact, gravity acts downwards towards the center of the Earth and tension acts along the length of a string or rope.

Answer:

A. friction, B. air resistance