Question

47.5 m/s ... -33.1 m/s what is the δv?
→ ... ←
-70.6 m/s -
-14.4 m/s -
-80.6 m/s -
14.4 m/s -
-47.5 m/s -

Explanation:

Step1: Recall the formula for change in velocity

$\Delta v = v_f - v_i$
Here, $v_i = 47.5$ m/s and $v_f=- 33.1$ m/s.

Step2: Substitute the values

$\Delta v=-33.1 - 47.5$
$\Delta v=-80.6$ m/s

Answer:

-80.6 m/s