Let h = vo^2/4.9 sin(theta) cos(theta) model the horiontal distance in meters traveled by a projectile. If the initial velocity is 36 meters/ second, which equation would you use to find the angle needed to travel 100 meters?
A. 100sin(2theta)= 100
B. 132.12sin(2theta)=100
c. 7.36sin(2Theta) = 100
D. 264.49sin(2theta) = 100

Question

Let h = vo^2/4.9  sin(theta) cos(theta)  model the horiontal distance in meters traveled by a projectile. If the initial velocity is 36 meters/ second, which equation would you use to find the angle needed to travel 100 meters? 
A. 100sin(2theta)= 100
B. 132.12sin(2theta)=100
c. 7.36sin(2Theta) = 100
D. 264.49sin(2theta) = 100

anonymous · Answer

$$\sin \theta \cos \theta=1/2\sin 2 \theta$$
$$h=\frac{ v_0 \sin 2\theta }{ 4,9\times 2 }$$

anonymous · Answer

calculate and 
$$36/9.8$$see wich one mathces

anonymous · Answer

whatare you talking about???

anonymous · Answer

@amistre64

amistre64 · Answer

hmm, after some thoght, does travel 100 mean "land at 100"? which is when h=0

anonymous · Answer

wait. ._.  what? .... yeah ..that  totally... ..great T.T

anonymous · Answer

i think its h= 100?

amistre64 · Answer

ugh, internet is being mean to me ...

anonymous · Answer

ahhh

amistre64 · Answer

the general formula for finding range of a projectile is:
$$\frac{ (v_0)^2 \sin (2\theta) }{ g}=range$$

amistre64 · Answer

so 36^2/9.8 sin(2 theta) = 100

what is 36^2/9.8 ??

anonymous · Answer

132.24

amistre64 · Answer

and the closest option to that would start with 132.12  the difference is prolly due to a roundoff error on their part

anonymous · Answer

mmk