


A ball is launched from ground level with an initial upwards velocity of 20 m/s and an initial horizontal velocity of 30 m/s. Verify the ranges shown for the projectiles in Figure 5(b) for an initial velocity of 50 m/s at the given initial angles.

Modern long-range guns like the US Navy's 16-inch guns are able to attain ranges in excess of 25 miles using an initial elevation angle near 45 degrees their shells reach an altitude of approximately seven miles.

Our history is extremelly rich and interesting and I have many examples that contradict anyone who says that "Latin America is meh". We had massive battles like the battle of Riachuelo (naval) in the War of the Triple Alliance and the battle of Ayacucho (land) in the Peruvian War of Independence. We also had power and territorial disputes between the various criollo elites and the metropolitam elites, and the chaotic mess that was the first years of independent South America with Bolivia, Ecuador, Chile and Peru vying for control of the Pacific Coast and Brazil and Argentina doing some sort of influence clash for the power over Uruguay and Paraguay. The Latin America's struggle for independece and the post-colonial period saw religious uprisings led by "warring" priests like Antonio Conselheiro in Brazil and José María Morelos in Mexico, saw internal racial conflicts like the guerrilla of the native american Tupac Amaru in Peru and of Zumbi dos Palmares in Brazil.
