Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
kbarnes7
Group Title
a machine can toss a golf ball a distance of 120 m on a level playing field when the machine is set to an angle of 30 degrees. How far can the machine toss the ball when it is set to an angle of 45 degrees.
 one year ago
 one year ago
kbarnes7 Group Title
a machine can toss a golf ball a distance of 120 m on a level playing field when the machine is set to an angle of 30 degrees. How far can the machine toss the ball when it is set to an angle of 45 degrees.
 one year ago
 one year ago

This Question is Closed

shubham.bagrecha Group TitleBest ResponseYou've already chosen the best response.0
dw:1379214266422:dw
 one year ago

kbarnes7 Group TitleBest ResponseYou've already chosen the best response.0
ok so where do i go from there
 one year ago

shubham.bagrecha Group TitleBest ResponseYou've already chosen the best response.0
\[R=\frac{u^2 \sin(2 \theta)}{g}\] \[\theta = 30 degrees\]R=120m \[120=\frac{u^2 \sin(2 *30)}{10}\] find u.
 one year ago

shubham.bagrecha Group TitleBest ResponseYou've already chosen the best response.0
then find R for 45 degrees with this u.
 one year ago

kbarnes7 Group TitleBest ResponseYou've already chosen the best response.0
ok, so is it 170 m, 98 m , 140 m , 85 m or 150 m? trying to check my answer
 one year ago

shubham.bagrecha Group TitleBest ResponseYou've already chosen the best response.0
what u you got?
 one year ago

shubham.bagrecha Group TitleBest ResponseYou've already chosen the best response.0
\[u^2 = \frac{120*10}{\sin 60}\] \[u^2 = 800\sqrt{3}\] now theta = 45 \[R=\frac{u^2 \sin(2*45)}{10}\] substitute value of u^2. \[R=\frac{800 \sqrt{3} \sin(2*45)}{10}\]
 one year ago

shubham.bagrecha Group TitleBest ResponseYou've already chosen the best response.0
\[R=80\sqrt{3}\]
 one year ago

kbarnes7 Group TitleBest ResponseYou've already chosen the best response.0
man i missed that up, so with sig figs.... 140 m?
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.