How Do I Solve Angle Problems in Physics?

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SUMMARY

The discussion focuses on solving angle problems in physics, specifically regarding questions 10, 12, and 13, which involve concepts not covered in class. Participants emphasize the importance of resolving forces using the equations Efx=0 and Efy=0 for equilibrium. A key technique mentioned is the application of trigonometric functions, such as sine and cosine, to calculate components of velocity at specific angles, like 45 degrees. This approach is crucial for tackling problems involving angles and pulleys effectively.

PREREQUISITES
  • Understanding of basic physics concepts, particularly forces and equilibrium
  • Familiarity with trigonometric functions, specifically sine and cosine
  • Knowledge of vector resolution in physics
  • Experience with problem-solving techniques in mechanics
NEXT STEPS
  • Study the principles of vector resolution in physics
  • Learn how to apply trigonometric functions in physics problems
  • Practice solving equilibrium problems using Efx=0 and Efy=0
  • Explore pulley systems and their mechanics in physics
USEFUL FOR

Students preparing for physics exams, particularly those struggling with angle-related problems and mechanics, as well as educators seeking to enhance their teaching methods in these topics.

bradycat
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Attached are 3 problems that we were never shown in class on how to do it. I have a test in 3 days and need to figure this out, and no more class time.

Question 10 12 and 13.
We NEVER did anything with angles in it. And nothing like pulleys this way either.

As for 12 I see you have to do a Em on a point, then solve via Efx=0 and Efy=0 I guess.

Any help to get me started would be great, ANY HELP!.

Thank you
 

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I have not done these types of problems in a while but your question about angles, well you would solve the problems same way but in the calculation instead of having
example hale was hitting a window at a 45degree with speed 5km/s . the the speed would really be 5sin45 or 5cos45 depending on the direction or something its something like that.
 

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