|
It should be clear from the oil drop pattern that the object is moving with a changing velocity. The object changes its speed from a low velocity (slow) to a large velocity (fast). The velocity is negative the entire time. You must match this motion with the appropriate velocity-time plot.
Since the velocity is negative, you will need to pick a line that is in the negative region of the graph (above the time axis). Since there is an acceleration (that is, the velocity is changing), you will need to pick a line with a slope (see Know the Law section). Since the object is moving from slow to fast, you will need to pick a line which slopes downward from a nearly 0 velocity to a large negative velocity.
|