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kbarnes7
 one year ago
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.
kbarnes7
 one year ago
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.

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

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

shubham.bagrecha
 one year ago
Best 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.

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

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

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

shubham.bagrecha
 one year ago
Best 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. \[R=\frac{800 \sqrt{3} \sin(2*45)}{10}\]

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

kbarnes7
 one year ago
Best ResponseYou've already chosen the best response.0man i missed that up, so with sig figs.... 140 m?
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