Physis
posted by Sam .
A projectile is launched with an inital velocity of 30.0m/s at an angle of 60 degrees above the horizontal. How far does it travel. Please show me how to solve this.

Draw your triangle
Decide whether to use sin or cos
find value
dh=vht
Solve for dh. 
Payday: stop answering if you have no idea.
time in air: hf=hi+30sinTheta*t1/2 g t^2
hi=hf=0
solve for time in air t.
then, hoizontal distance
distance=timeinair*30cosTheta