http://physicsed.buffalostate.edu/c...anics/PDF files/4-FP-Inertia/Tests/Quiz 1.pdf 1) I don't know how to do this, but I know there is the force of gravity by the earth in the force diagram.. 2) For this one I got the answer Fx=7.5N [I did 1/2(15N) which equals 7.5 N] Fy=13N [I took my x component 7.5N and I did 7.5sqrt3=13N] Did I solve this problem right?? 3) How do you write an equation for this diagram? Can you tell me if I did the Bonus right? T1cos(60)=T2 T2sin(60)= 3kg T1sin(60)=3kg I divided both sides by sin(60) to make T1 by itself so T1sin(60)/sin(60)=3.464 SO T1=3.464 I took T1=3.464 and plug it into T1cos(60)=T2 3.464cos(60)=T2 T2=1.232 So I don't know if I got that one right?? My answer is T1=3.464 and T2=1.232 Please help me..I really need this. Thank you!