An animation shows a putted golf ball as it hits the edge of the hole.
The velocity vector v_1 is its velocity just before it hits the hole (t = 0.9 s), and
its velocity vector v_2 is its velocity just after it hits the hole (t = 1.2 s).
Draw the change-in-velocity vector,
, for the golf ball for the time interval from t = 0.9 s to t = 1.2 s.