right arrow
Informational Message Stay on top of the information you need to navigate the admissions process amid the COVID-19 pandemic. We've got articles, videos and forum discussions that provide answers to all of your test prep, admissions and college search questions.   Visit our COVID-19 resource page.

Introducing Kai!
Your College Confidential guide bot.

Kai can provide tips and support as you research and apply to colleges, and explore majors and careers.

Chat with Kai
here, 24/7!

or Skip Forever

IMPORTANT NEWS: CC Forums are now in read-only mode as the team is working on the transition to a new, modern forum platform with enhanced features. We anticipate full service on the site to return by Friday, Nov. 27 at 2:00pm ET. Read more about this here!

Physics Question

grantedingrantedin 169 replies24 threads Junior Member
edited September 2007 in AP Tests Preparation
Will you help me with #7 on page 10 from the link below?

edited September 2007
3 replies
Post edited by grantedin on
· Reply · Share

Replies to: Physics Question

  • YanksDolphinsYanksDolphins 1052 replies16 threads Senior Member
    I hope this method is correct:
    There are 3 forces on the sign, gravity, A, and B. The sign will have to be in equilibrium so we want the the net force to be 0 and all the forces to balance out. Instead of using the 30 degree angle, instead use it's complement of 60. The y-component of the tension is just the weight. We know that Ty = T sin 60 so we can easily solve for the tension of A, 500sqrt3. Applying the Pythagorean theorem, we can solve for Tx, which is 433 N. This should also be the tension in B as well. So 433 N. If I'm wrong, hopefully someone can correct it.
    · Reply · Share
  • It'sGr82BeAGatorIt'sGr82BeAGator 474 replies39 threads Member
    Yeah, that's right
    · Reply · Share
  • grantedingrantedin 169 replies24 threads Junior Member
    Thank you so much for your help. I am taking physics as a junior. AP Physics is not offered at my school. Prerequisite for this class is Honors Algebra 2.
    · Reply · Share
This discussion has been closed.

Recent Activity