A community for students.
Here's the question you clicked on:
 0 viewing
austinL
 one year ago
At a certain time a particle had a speed of 80 m/s in the positive x direction, and 7.0 s later its speed was 90 m/s in the opposite direction. What was the average acceleration of the particle during this 7.0 s interval?
I can think of two answers that I could get:
24.29m/s^2
1.43 m/s^2
Any help would be appreciated.
austinL
 one year ago
At a certain time a particle had a speed of 80 m/s in the positive x direction, and 7.0 s later its speed was 90 m/s in the opposite direction. What was the average acceleration of the particle during this 7.0 s interval? I can think of two answers that I could get: 24.29m/s^2 1.43 m/s^2 Any help would be appreciated.

This Question is Closed

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.1I got 24.29 too but I haven't done these kind of problems in a long time. I just looked at the change of speed ( so from 80 to 0 and 0 to 90 considering it is in the opposite direction). So I put the acceleration as 24.28. ^^ ( well a = speed / delta t

MarcLeclair
 one year ago
Best ResponseYou've already chosen the best response.1or if you want to spend the time on it, draw the graph, find the rule of the velocity graph ( should be a linear one ax+b) and integrate it ^^

austinL
 one year ago
Best ResponseYou've already chosen the best response.0Ok, thanks! I just wanted another set of eyes to look at it.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.