Wednesday

July 23, 2014

July 23, 2014

Posted by **Hanna** on Wednesday, July 4, 2012 at 6:24pm.

- Algebra & Trig -
**bobpursley**, Wednesday, July 4, 2012 at 7:45pmunder the influence of gravity?

consider the maximum height, velocity vertical is zero.

Vf=vi+gt

0=12sinTheta-9.8t

t=12sinTheta/9.8

time in the air is twice that time.

no, horizontal distance

13=12cosTheta*t=12cosTheta*2*12sinTheta/9.8

13=12^2/9.8 *2 cosTheta*sinTheta

remember siin2Theta=2sinTheta*cosTheta

solve for theta

13*9.8/144=sin 2Theta

check this.

Theta=50.6 deg

**Related Questions**

Physics/Formulas - Calculate the SI units of the constants A and B in each of ...

math-algebra - A launched rocket has an altitude, in meters, given by the ...

Algebra~Scary problem! - A launched rocket has an altitude, in meters, given by ...

algebra - The formula below can be used to find the distance (d) traveled by an ...

algebra - The formula below can be used to find the distances (d) traveled by an...

physical science 2 - It takes 6 seconds for a stone dropped from rest to the ...

Math - PreCalc (12th Grade) - If the distance covered by an object in time t is ...

math - a launched rocket has an altitude, in meters, given by the polynimial h+...

Algbrah - A launched rocket has an altitude in meters, given by the polynomial h...

math 117 - A launched rocket has an altitude in meters, given by the polynomial ...