A car travels through a valley at constant speed, though not at constant velocity. Explain how this is possible. b. Construct a qualitative motion map for the car. r v c. Is the car accelerating

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.