The detrimental signal refers back to the route of the rigidity, it really is downward. through convention, detrimental velocity and detrimental acceleration are downward. in case you positioned g as constructive, then a projectile released upwards would have detrimental velocity, which does no longer make intuitive experience.
2006-02-14 05:11:05 UTC
Projectile motion refers to the motion of an object projected into the air at an angle.
( http://library.thinkquest.org/2779/ )
h = V^2 x Sin^2A / 2g
R = V^2 x Sin2A / g
t = 2V x SinA / g
h=height
R=Range
t=total flight time
A=angle of projection
g=acceleration due to gravity
milindbajekal
2006-02-14 04:39:45 UTC
A trajectory is an imagined trace of positions followed by an object moving through space. Some common examples of trajectories: (i) the path taken by a falling body, and (ii) the orbit of a spacecraft. A particular trajectory may be described mathematically either by the geometry of the entire trajectory (i.e. the set of all positions taken by the object), or as the position of the object as function of time.
sks
2006-02-14 05:20:27 UTC
When an object is launched under the influence of only a uniform gravitational force field, it is said to follow a projectile motion. Under ideal condition, the path it traces is parabolic. There is catch here – if the initial velocity is equal or more than the escape velocity then the object will simply vanish into space i.e. leave earth!
Imagine if the launch angle from the horizontal is “theta” and initial velocity is “U” then you can easily compute vertical (Uv) and horizontal (Uh) components of it. The Uv will be equal to U x Sin(theta) and Uh will be equal to U x Cos(theta). Now by using Uv you can compute the max height it will reach and the total time it will take to go up and return to ground. With this round trip time in hand, you can easily compute the max horizontal distance it will cover before hitting the ground.
All these calculation assume ideal conditions like no wind resistance etc.
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