In the absence of an external force, a moving object a) stop immediately. b) slow down and eventually come to a stop. c) gradually speed up until it reaches its terminal velocity. d) move with constant velocity in a straight line. e) move with constant velocity in a circular orbit.

In the absence of an external force, a moving object will move with a constant velocity in a straight line.

This is according to Newton's first law of motion that states: An object continues to be  in its state of rest or uniform motion and in the same direction not unless acted upon by an external force to change that state.

a. are

i think the answer is a and b

i wish you luck