Edit to Tangential Accelerationmissing point

  • #1
3,003
2

Homework Statement


If a car drives around a race track constructed such that two arcs of radius A=80m and Radius B=40m are joined by two stretches of straight track at a constant speed of 50 m/s, what is the ratio of the tangential accelerations A to B....Meaning asking for the ratio of the Tangential Acceleration around arc of radius A (80m) to that of the Tangential Acceleration around arc of radius B (40m). Also it is multiple choice. a.)1/2...b.)1/4...c.)2...d.)4......or e.)both equal 0.



Homework Equations






The Attempt at a Solution





I know this is much easier than I am making it. I know that A_t=r*alpha....but I do not have alpha and I am a little confused to how to calculate it? Just a hint to get me going?
 

Answers and Replies

  • #2
3,003
2
I know that if linear acceleration is the change in linear velocity, then there is no change in this instance. Therefore a=0--->alpha 0...is this correct? Because alpha=a/r.
 
  • #3
hage567
Homework Helper
1,509
2
If you are just looking at the tangential component of the total acceleration, then I would say you are right.
 
  • #4
3,003
2
Yes. It is just the Tangential component. So that does look right.
 

Related Threads on Edit to Tangential Accelerationmissing point

Replies
7
Views
2K
Replies
7
Views
2K
Replies
1
Views
2K
Replies
7
Views
3K
  • Last Post
Replies
2
Views
9K
Replies
1
Views
611
  • Last Post
Replies
4
Views
7K
Replies
1
Views
3K
Replies
1
Views
808
Replies
23
Views
3K
Top