Accelerated Motion: Calculating Velocity/Distance

In summary, the conversation is discussing the motion of a ball rolling down an inclined plane with a constant acceleration of 2 meters per second. The formula d = 1/2 * (A) * T^2 is used to determine the distance traveled by the ball in a given amount of time, with a starting velocity of zero. The question is asking for the velocity and distance of the ball at 2, 3, 4, and 5 seconds. It is important to note that the velocity increases by 2 meters per second every second, and the distance traveled is proportional to the square of the time since it started at rest.
  • #36
from the second second to the third sec:
9-4 =5 metres!
 
Physics news on Phys.org
  • #37
zachcumer said:
So its 3 meters~!~ YA!

Now, can you tell me what it would be in say the 21st second?

Let's ignore the the incline length, and please don't try to do this by adding each and everyone individually.

More importantly though, do you understand why it is the difference of the two?
 
  • #38
From the 3rd second to the fourth.

16 - 9 = 7...right?
 
  • #39
individual sec. and total sec. right?
 
  • #40
quick q:

4 plus 9 plus 16 plus 9 doesn't equal 25?
 
  • #41
zachcumer said:
quick q:

4 plus 9 plus 16 plus 9 doesn't equal 25?

Well why should it?
I've absolutely no idea what you are adding here.

1+3+5+7+9=25 is what I think you should be adding, this is true isn't it? My math may be rusty :)
 
  • #42
hey my bad ur right. Added up wrong things. Thanks so much!
 

Similar threads

  • Introductory Physics Homework Help
Replies
10
Views
2K
  • Introductory Physics Homework Help
Replies
10
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
888
  • Introductory Physics Homework Help
Replies
9
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
6K
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
7
Views
1K
  • Introductory Physics Homework Help
Replies
15
Views
1K
  • Introductory Physics Homework Help
2
Replies
38
Views
1K
Replies
6
Views
1K
Back
Top