help in physics !

[ahmed abdulla]

i need help in physics in alot of concepts ..... like 1-draw vector triangle 2-find area of non-straight line 3- draw a curve for phase difference of eg 90 ... etc questions like this will be found in m'j 2010 va .43 q 2c 3i 5b ,,,, any help .... i really need alot of help in physics .. am very weak ,,,, any hellllp ???????

 

[Adorkableme]

u should try these videos on youtube...this guy explains well...
http://www.youtube.com/user/DrPhysicsA