Posted by Xin Zhang on Wednesday, March 7, 2012 at 12:00am.
A pistol is fired horizontally and the bullet has a muzzle velocity (speed with which the bullet leaves the barrel) of 31.3 m/s. The gun is 50 m above the surrounding terrain.
a) How far away does the bullet land measured horizontally from a point directly beneath the gun? You can see the exact situation at this site:
b) The gun is now tilted upward at an angle of 45 degrees and fired with the same muzzle velocity. What is its horizontal range now? (Again you can check your answer on the above website). You should refresh yourself on the solution to the Quadratic Equation.

physics  Xin Zhang, Wednesday, March 7, 2012 at 12:52am
A pistol is fired horizontally and the bullet has a muzzle velocity (speed with which the bullet leaves the barrel) of 31.3 m/s. The gun is 50 m above the surrounding terrain. The gun is tilted upward at an angle of 45 degrees.
What is its horizontal range now?