At time t = t1, an object’s velocity is given by the
vector v1 shown below.

[img]http://www.testprepkart.com/micro_media/1.png[/img]

A short time later, at t = t2, the object’s velocity is the
vector

[img]http://www.testprepkart.com/micro_media/Capture 2.PNG[/img]

If v1 and v2 have the same magnitude, which one of the
following vectors best illustrates the object’s average
acceleration between t = t1 and t = t2 ?