If an object moves with constant (non-zero) acceleration, then which, if any, of the following statements about its motion is/are true?
the position may be increasing or decreasing.
a: true b: false

the acceleration may be increasing or decreasing.
a: true b: false

the velocity may continually change by varying amounts depending on the speed.
a: true b: false

the speed must continually change by the same amount during each equivalent unit of time.
a: true b: false

the magnitude of the velocity, or speed, also could be constant. a. true. b. false