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When a projectile is shot at ground level the range formula is this...

d = (v2/g) * sin 2*theta

d=range

v=velocity

g=speed of gravity

sin= sine function

theta=angle that you make when the projectile is shot

In your question you are asking about theta. The maximum distance you will get is when theta is 45 degrees. This is because of gravity. Gravity is pulling down on the object. When something is shot above 45 degrees gravity pull down on the object the same way as it pulls down on the corresponding angle below 45 degrees. When I say corresponding angle look below. Basically the answer to your question is because of gravity.

Corresponding angles...

44 and 46

50 and 40

10 and 80

15 and 75

89 and 1

30 and 60

90 and 0

If you notice they all add up to 90 degrees. 90 degrees is the highest angle that can be shot. If it is greater than 90 degrees then the projectile will go behind you.

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Q: Why there are two possiles angles for the same range of projectile?
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Related questions

What are the angles for which the range of projectile is the same?

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Why do complementary angles of launch result in the same projectile range?

It is a case of Trigonometry/Geometry. The two triangles formed by the angles and sides of artillery aiming are "Similar" (not congruent) since two angles and a side (base) are Similar. Because the Range of the projectile is 2x the base (which is congruent) of the triangles, the range MUST be the same.


Which two angles gives the same range as 45 degrees?

If the question is in the context of the flight of a projectile, the answer is none.


What is the horizontal range of a projectile initial velocity is doubled?

If "range" means that the shooter and the target are on the same level: quadrupled (if airesistance can be neglected). It takes twice the time until gravity "eats up" vertical velocity and during that time the projectile moves with double horisontal velocity. But if you shoot horisontally from a cliff at double velocity the flighttime will be the same and the range only doubled.


Why there are two possible angles of projection for same range with same velocity of projection?

At a certain angle - 45 degrees if the starting point and end point are at the same level, and air resistance can be ignored - and at a certain speed, the range is maximum. Both for lower and for higher angles, you get a lower range.


Are the 308 Winchester and the 7.62x51NATO rounds the same?

They are dimensionally similar, but they are not exactly the same. There are differences in projectile grains and neck angles - the latter can cause improper headspacing if used in a chamber not intended for that cartridge.


Why the projectiles thrown with angle 30 degree and 90 degree have the same range?

No. The range of the projectile thrown at 90 degrees is 0. It goes straight up and then straight down!


Why angles of 30 and 60 degrees have same range?

because 30 and 60 makes 90


Why can two different angles lead to the same range?

they have the same velocity. if it is aimed high and aimed straight then they could reach the same point if it has the same velocity


How many angles are the same in a trapezium?

It could have:no angles the same ortwo angles the same ortwo pairs of angles which are the same.


What does momentum not depend on?

Energy. Two objects with the same momentum can have different kinetic energy. Example - A 1 oz projectile at 1000 ft/s and a 10 oz projectile at 100 ft/s have the same momentum. The lighter projectile has 10 times as much kinetic energy as the heavy projectile. Example - A 1 oz projectile at 1000 ft/s and a 100 oz projectile at 100 ft/s have the same kinetic energy. The heavier projectile has 10 times as much momentum as the lighter projectile. Momentum = m*v. Energy = (m*v*v)/2.


What do you call angles that are the same?

Angles that have the same measure are called congruent angles.