(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

this is a three part question (this i just a general thing for equations without numbers) for an object (the same as explained on this link: https://www.physicsforums.com/showthread.php?t=167283) but the string is not quite horizontal i.e. the r will be r cos theta because it will be a right angle triangle:

1. calculate the magnitude of the centripetal acceleration acting on a mass moving in a circular path at constant speed.

2. revise "components of forces"

3. verify the relation between the centripetal force acting on a body and the angular speed of the body.

and would i also be right is saying that a varying radius for a constant velocity isnt a problem since v = rw = 2pier/rw = 2pie/w

2. Relevant equations

3. The attempt at a solution

here's how i read them, please let me know if iam wrong or right!

1.centripetal force is usually a_c=v^2/r but since it isnt exactly at the full radius length since it forms (what we will call) a perfect right angle triangle, wouldn't it be the same radius and would be instead a_c = v^2/r cos theta

2. "components of forces", i guess this means all the forces acting upon the moving weight i.e. gravity, centripetal force, acceleration and how they all equate to the the weight just spinning there.

3. This iam not sure how to start. help would be appreciated :)

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Centripetal motion

**Physics Forums | Science Articles, Homework Help, Discussion**