2-D motion is motion in two directions, typically x and y. In most situations, the two "components" of motion, as they are called, can be treated separately. In projectile motion, the horizontal (x) component of velocity is assumed to be constant; air resistance is ignored for most introductory level questions. The vertical (y) component of velocity experiences gravitational acceleration. When a projectile is thrown upwards at an angle, the vertical component of velocity slows up to the peak height, and then increases downwards. Projectile motion problems often involve using gravity and the initial vertical velocity to determine how long the projectile remains in the air, and then multiplying that time by the initial horizontal velocity to determine how far a distance the object travels. The initial velocity is often given as a magnitude and angle, and part of the problem is to use trigonometry to separate the horizontal and vertical components of motion. The path of motion of a projectile is always a parabola.
2006-08-22 04:53:43
·
answer #1
·
answered by DavidK93 7
·
0⤊
1⤋
2 dimentional motion meaning:
the direction of motion can have 2 directions only :
1. Up + forward or back
2. Down + forward or back
projectile motion is only a 2d motion when expressed like so on a piece of paper ( UP and forward reaching the maximum height then Down + forward)
But in reality everything moves through the realm of Time including the 3d. For instance a projectile can be moving left or right while in air due to other forces ( like the wind force component)
2006-08-22 11:57:54
·
answer #2
·
answered by MyStIcTrE3 3
·
0⤊
0⤋
motion in two dimensions
like a ball moving simultaniously to east and north (non unidirectional)
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.
2006-08-22 11:51:26
·
answer #3
·
answered by T-bag 3
·
0⤊
0⤋
Actually 2 dimensional motion does not really exist what you observe as 2-d mtion is really three dimensional . all motions in the Universe are 3 dimentional where time describe the location of the motion in the 3-d travel.
2006-08-22 11:57:57
·
answer #4
·
answered by goring 6
·
0⤊
0⤋
Motion in 2 dimensions, not taking into consideration for elevation or altitude.
2006-08-22 11:53:36
·
answer #5
·
answered by Anonymous
·
0⤊
0⤋