Giving out 1.)the line on the graph below represents an object is a. moving at a constant speed b. increasing its speed c. decreasing its speed d. not moving at all 2.) to determine the acceleration of an object moving in a straight line, you must calculate the change in its speed during each unit of a. velocity b. time c. motion d. deceleration 3.)what happens when two forces act in the same direction? a. they cancel each other out b. the strong one prevails c. their strengths are added d. their sum dived by two is the total force