projectileDefinition from Wiktionary, the free dictionary Jump to: navigation, searchNounWikipedia has an article on: ProjectileWikipedia projectile (plural projectiles)
From Wiktionary under the GNU Free Documentation License. A projectile is any object projected into space (empty or not) by the exertion of a force. Although a thrown baseball is technically a projectile too, the term more often refers to a weapon.. For details of the mathematics surrounding projectile trajectory, see equations of motion. From Wikipedia under the
GNU Free Documentation License What magnitude of vi enables projectile to reach maximum height? Q. A projectile with mass of 275 kg is launched straight up from the Earth's surface with an initial speed vi. What magnitude of vi enables the projectile to just reach a maximum height of 5.8RE, measured from the center of the Earth? Ignore air friction as the projectile goes through the Earth's atmosphere. Asked by Dolce - Thu Oct 15 11:28:17 2009 - - 2 Answers - 0 Comments A. given the distances in this problem, we cannot assume a constant value of g, since the force of the earth's gravity on this object will change significantly throughout its flight the best approach to take is conservation of energy; potential energy + kinetic energy at launch = potential energy + kinetic energy at max ht at start: KE=1/2mv^2 and potential energy = -GMm/RE where G is newtonian grav cst, M is mass of Earth, m is mass of projectile, RE is distance from center of earth at max height, KE=0 and PE = -GMm/5RE we have -GMm/RE + 1/2 mv^2 =- GMm/5RE 1/2 v^2 = GM/(1/RE- 1/5RE) v=sqrt[2GM(1/RE- 5/RE)] substitute RE= 6.3x10^6m M=2x10^24 kg G= 6.67x10^(-11) v=5774m/s Answered by kuiperbelt2003 - Thu Oct 15 11:51:21 2009 How can I study the projectile motion of a body travel from air into a water ? Q. how will the motion in water effect the equations of projectile motion in air? what should I consider in calculations of motion in water? any books are recomended? Asked by weleef_elro7 - Mon May 1 11:08:35 2006 - - 6 Answers - 0 Comments A. Difficult. I am a Chemical Engineer. It will include the shape of the object because of the increase in friction, the density of the object vs. water, the speed of entry, currents in the water body, mass of the object an surface smoothness of the object. I would review engineering books and websites on submarines for your answers. Good luck!!! Answered by Texas Cowboy - Mon May 1 11:12:20 2006 What are the basics of energy transfer and projectile motion?
Q. im doing a science assignment and in the discussion section it asks me about the basics of energy transfer and projectile motion, since i have had so many assignments, my brain is dead and i cant remember those basics. can anyone help? Asked by Dan de lion - Wed Nov 25 06:15:25 2009 - - 2 Answers - 1 Comments A. In three words, the basics are the "conservation of energy." No more, no less. This means the total energy the projectile starts with at the muzzle (launch point) is the total energy it will have upon impact. And in fact, the total energy TE is fixed at any waypoint in the trajectory. What changes is the content of that TE. If drag is discounted, we can write in general terms: At the muzzle... TE = KE + pe; the total energy at the muzzle is kinetic energy KE plus the potential energy at the height h of the muzzle. KE = 1/2 mV^2 = 1/2 m (Vx^2 + Vy^2) where V is the muzzle velocity and Vx = V cos(theta) and Vy = V sin(theta). Theta is the muzzle elevation angle. At max height H above the ground... TE = KEx + PE = KEx + pe + mgy; KEx… [cont.] Answered by oldprof - Wed Nov 25 14:18:29 2009 From Yahoo Answer Search: "projectile"  weau.com Wed, 23 Jun 2010 16:54:40 GMT+00:00 WEAU-TV 13 ... outdoor decorations or ornaments, trash cans, hanging plants and anything else that can be picked up by wind and become a projectile . ...  police.nsw.gov.au Sat, 19 Jun 2010 18:29:37 GMT+00:00 NSW Police Online (press release) He followed the trail of the projectile from the architrave and gyprock wall to a bullet hole in a built-in wardrobe. Police, including detectives from the ...  passionperformance.ca Thu, 17 Jun 2010 15:10:24 GMT+00:00 PassionPerformance.ca ... to have entered the motorcycle gang's clubhouse in Munich on Sunday, mooned them, and then to have hurled a small canine projectile in their direction. ... From Google News Search: "projectile"  public-safety-systems.com 373px x 600px | 51.80kB [source page] mounted behind the grille of a police cruiser uses a laser to target the fleeing vehicle It discharges a projectile containing the GPS receiver transmitter and power supply 2 The projectile adheres to the suspect vehicle and transmits coordinates back to dispatch 3 The dispatcher then views the location and movements of the tagged vehicle in near real  i254.photobucket.com 569px x 705px | 187.60kB [source page] IMG http i254 photobucket com albums hh115 ToonStanley heavy png Projectiles IMG http i254 photobucket com albums hh115 ToonStanley projectile png Other IMG http i254 photobucket com albums hh115 ToonStanley novelty png From Yahoo Image Search: "projectile"  onebillionminds.com pencilreturns Wed, 21 Apr 2010 01:18:41 GM Projectile. -Tank is a simple game consisting of small manual tank. Made of wood/plastic, it has a platform and a barrel whose angle can be changed. The objective is to hit each other's tank with kinetic . projectiles. and capture other's ... From Google Blog Search: "projectile" |
