- #1
huynhtn2
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Homework Statement
A person wants to shoot a rocket off of a mountain 3.70 km high so that the rocket, when shot at 37.7° above the horizontal from the very top of the mountain, lands at the foot of the mountain 9.65 km (horizontal distance) away. What initial speed must the rocket have? (Assume that the only force acting on the rocket after it is blasted from the top of the mountain is gravity.)
Homework Equations
d=vit + 0.5at^2
vf=vi +at
vf^2=Vi^2 +ad
The Attempt at a Solution
I drew out the diagram and labeled all the angles on the mountain ( i don't know if i need them). I really don't know where to go from here. Can someone help me out? I tried making equations but there are always two unknown values.