A community for students.
Here's the question you clicked on:
 0 viewing
 3 years ago
You are riding your bicycle at a speed of 12 ft/2.
Four seconds later, you come to a complete stop. Find the acceleration of your bicycle.
Help! and explain it too please?
 3 years ago
You are riding your bicycle at a speed of 12 ft/2. Four seconds later, you come to a complete stop. Find the acceleration of your bicycle. Help! and explain it too please?

This Question is Closed

mcgyver
 3 years ago
Best ResponseYou've already chosen the best response.0\[v _{f}=v _{i}+at\] 0=12+a(4) 3ft/s=a

Valpey
 3 years ago
Best ResponseYou've already chosen the best response.1Acceleration is the change in speed (or velocity) over time. In this case you decelerated from 12 feet per second to zero feet per second across a period of four seconds. On average over those four seconds your speed went down by 3 feet per second for each of those seconds. Hence your acceleration was negative three feet per second per second or: \[3ft/s^{2}\]

Valpey
 3 years ago
Best ResponseYou've already chosen the best response.1If your acceleration was perfectly constant over those four seconds, your speed at time 0 was 12ft/s; at time 1 was 9ft/s; at time 2 was 6ft/s; at time 3 was 3ft/s; and at time 4 was 0ft/s.
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.