(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A ball rolls up a straight incline. The dots in the diagram represent the position of the ball every 4 seconds.

(The fourth dot is not intended to represent the turnaround point; the ball might still be on the way up at that

point.) The instantaneous velocities at the second and third dots are as given in the diagram.

a. Determine the velocities at the locations of the first and fourth dots and label them on the diagram. (2 points)

b. Determine how far the ball travels between the second and third dots. (3 points)

(IMAGE attached!)

2. Relevant equations

a_{avg}= Delta V/ Delta T

3. The attempt at a solution

I am kind of stumped at this problem and not sure where to begin or how to get where I'm trying to go, all I could think to do was this...then I wasn't sure where to go from there.

(5m/s^{2}+ 7m/s^{2}) / 2 = Delta V/(8s-4s)

Delta V = 24m/s

Please help! thank you

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Ball rolling up an incline Final Exam Review

**Physics Forums | Science Articles, Homework Help, Discussion**