Question

A. If a projectile (such as a bullet) is fired into the air with an initial velocity v at an angle of elevation θ (see the figure below), then the height h of the projectile at time t is given by \[h = −16t^{2} + vt \sin{θ}\]http://prntscr.com/98aa01

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B. Use your graphing calculator to find the solutions to the following equation for
0 ≤ θ < 360° by graphing the function represented by the left side of the equation and then finding its zeros. Make sure your calculator is set to degree mode. (Round your answers to one decimal place. Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)

• http://prntscr.com/98a0gv
• http://prntscr.com/98a0in
• http://prntscr.com/98a0px
If any one of these is solved for me I should be able to get the rest, thanks in advance--

Answer 1

@ganeshie8

Answer 2

how are you stuck on part A ?

Answer 3

you just need to plugin the given values of \(v\) and \(\theta\) right ?

Answer 4

I did and then got lost

Answer 5

it's 6 am and I haven't slept haha sorry -- ^^;

Answer 6

for part A you should get
\[h = -16t^2 + 950t\]

Answer 7

ok

Answer 8

950???

Answer 9

sin(30) = 1/2

so, 1900tsin(30) = 1900t*1/2 = 950t

Answer 10

ah, so that's the equation...? *brain processing issues* o-0

Answer 11

yes

Answer 12

oh, okay! 0-0

Answer 13

what about the others though x.x

Answer 14

I only need one really!

Answer 15

http://prntscr.com/98a0in problems