Answers

2015-01-28T11:07:14+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Rate here is defined as the distance travelled in feet per unit time(1 second).
The positions are: at 20 feet at time=2 second and at 42 feet at time=4second

Rate =  \frac{change\ in\ position}{change\ in\ time} = \frac{42-20}{4-2} = \boxed {\frac{22}{2}\ ft/s }
0