What is the centripetal acceleration?

  • Thread starter laladude
  • Start date
  • #1
14
0

Homework Statement



If a ball is being twirled in a circle with a radius of 0.5m, and then is let go such that the balls velocity makes an angle 30 degrees from the horizontal and then covers a distance of 1,000m before it hits the ground. What was the centripetal accelertaion provided by the string??

Picture provided

1.jpg


Homework Equations



Ac = v^2 / r


The Attempt at a Solution



I don't really understand how to get the velocity in order to just plug in everything else into the equation.
 
Last edited:

Answers and Replies

  • #2
1,039
2
Work backwards. What velocity would you need to make the ball arc 30 and cover 1000m for instance.
 
  • #3
14
0
Work backwards. What velocity would you need to make the ball arc 30 and cover 1000m for instance.
I'm still not understanding it. :confused:
 
  • #4
390
1
He's saying pretend there was just a projectile fired at a 30 degree angle that covered 1000m, from that you can find the velocity of the projectile, that velocity is the same as the velocity the object was moving as it spun around the circle.
 

Related Threads on What is the centripetal acceleration?

Replies
3
Views
11K
Replies
14
Views
6K
Replies
5
Views
4K
Replies
15
Views
1K
Replies
1
Views
3K
Replies
28
Views
413
Replies
2
Views
2K
Replies
31
Views
2K
  • Last Post
Replies
1
Views
610
Replies
1
Views
10K
Top