what is projectile?

Answer 1

A projectile in the calssroom physics sense is something that is launched or thrown by a power which does not come from the launched or thrown item itself.

For example, a bullet fired from a gun is propelled by the gunpowder, which is not part of the bullet (though it is part of the cartridge assembly).

A rocket is not a projectile in the classroom physics sense because its motor and the fuel used by the motor to provide thrust are parts of the moving piece.

However, note that Yahoo's online dictionary at
http://education.yahoo.com/reference/dictionary/entry/projectile
defines a projectile as:
"(1) A fired, thrown, or otherwise propelled object, such as a bullet, having no capacity for self-propulsion.
(2) A self-propelled missile, such as a rocket."

From a practicing physics point of view, whether the projectile can or cannot alter course by propelling itself is not relevant -- force is force, whether it comes from outside the object or inside of it. But to keep things simple, most classroom physics does not bring rockets into the equation because their mass is constantly changing as they burn fuel to apply thrust, and this means all sorts of calculus equations enter into what would otherwise be nice neat little algebra problems.

Answer 2

A projectile is an object upon which the only force acting is gravity. There are a variety of examples of projectiles: an object dropped from rest is a projectile (provided that the influence of air resistance is negligible); an object which is thrown vertically upward is also a projectile (provided that the influence of air resistance is negligible); and an object is which thrown upward at an angle is also a projectile (provided that the influence of air resistance is negligible). A projectile is any object which once projected continues in motion by its own inertia and is influenced only by the downward force of gravity

Answer 3

Any particle thrown into the air by an external force but not by using its efficiency may be called as projectile. if it's thrown making an angle it's called oblique projectile

Answer 4

A projectile is something that is launched or thrown by a power which does not come from the launched or thrown item itself.

For example, a bullet fired from a gun is propelled by the gunpowder, which is not part of the bullet (though it is part of the cartridge assembly).

A rocket is not a projectile in the classroom physics sense because its motor and the fuel used by the motor to provide thrust are parts of the moving piece

Answer 5

The final arbiter in international disputes. Formerly these disputes were settled by physical contact of the disputants, with such simple arguments as the rudimentary logic of the times could supply -- the sword, the spear, and so forth. With the growth of prudence in military affairs the projectile came more and more into favor, and is now held in high esteem by the most courageous. Its capital defect is that it requires personal attendance at the point of propulsion.

Answer 6

projectile is a phenomenon in which an object in thrown in air at a angle with the ground so that is travel a longer distance then an object which is thrown horizontally with the same force.

Observation and calculations have shown that when the angle is 45 degrees the object with go to the farthest point in comparison to all other angles

Answer 7

A projectile is an object that is moving through the air.

Answer 8

a projectile is a body which has both horizontal and vertical motion.it has acceleration along vertical but a steady motion along the horizontal.it takes a parabolic path due to gravity and acceleration

Answer 9

when object is thrown,,,,,,, it never follow straight path becoz of gravitation,,,,,,, its follow circular path through aerial route,,,,,, this circular travel is called as projectile

Answer 10

first you tell then i will