- #1
KUphysstudent
- 40
- 1
Homework Statement
A test rocket is fired from rest at point (A) along (b) a 200m incline, accelerating 1.25 m/s2
Given:
b = 200 m, the angle at point A is 35°, a = 1.25 m/s2
a) Find the maximum height above the ground.
b) Find the greatest range.
Homework Equations
If it was a constant velocity I would have no problem solving this but I don't know how to deal with this acceleration. My book doesn't seem to help me, it is rated the most difficult in the chapter of 2-3D motions. but there are no examples with varing acceleration in the horizontal direction.
When velocity is given
v0y = v0 sinθ
vy = v0y - gt1 = 0
t1 = voy/g
h = voyt1 - ½gt12
vox = v0 cosθ
y = 0 = voyt2 - ½gt22 = t2(voy - ½gt2)
t2 = 2voy/g
R = voxt2
But how do I find these when its acceleration?