(adsbygoogle = window.adsbygoogle || []).push({}); When to use Tsin(theta)=mv^2/r and Tsin(theta)=mg????Please help me out!!!!!!!

Hi i am quite good on horizontal and vertical circular motion,but i always get confused by this formulae,Tsin(theta)=mv^2/r and T cos(theta)=mg.In what situation i should use sin or coz formula coz i always end up using the wrong formula all the time.i use sin instead of cos and cos instead of sin as i dont know under what circumstance i should use these.Is this related to vertical or horizontal circular motion?

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

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: When to use Tsin(theta)=mv^2/r and Tsin(theta)=mg?Please help me out

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