# projectile motion.

#### GMChandio

Joined Feb 26, 2015
28
the horizontal component of a projectile moving with initial velocity of 500 m/s at an angle 60° to x-axis is equal to:

#### MrChips

Joined Oct 2, 2009
24,611
Draw your x and y vectors along with the velocity vector.

#### nDever

Joined Jan 13, 2011
153
the horizontal component of a projectile moving with initial velocity of 500 m/s at an angle 60° to x-axis is equal to:
Don't confuse the terminology. Horizontal and vertical components are properties of vectors. Projectiles are not vectors.

#### GMChandio

Joined Feb 26, 2015
28

#### MrChips

Joined Oct 2, 2009
24,611
What is the value of sin(0)?
What is the value of cos(0)?

#### alfacliff

Joined Dec 13, 2013
2,458
then find out what balisstic coeficient is, unless your talking about projectiles in space.

#### djsfantasi

Joined Apr 11, 2010
7,914
Or projectiles in a homework problem that conveniently ignores select real world conditions.

#### MrChips

Joined Oct 2, 2009
24,611
Presumably the question asks for components at initial firing.

#### alfacliff

Joined Dec 13, 2013
2,458
it has to travel through the atmosphere, a bullet starts to slow down as soon as it leaves the muzzle, affecting the path of its flight.

#### WBahn

Joined Mar 31, 2012
26,398
Learn to crawl before walking -- almost all projectile motion studies begin in the absence of friction of any kind. That comes later, and even then it is simplified and ignores other factors that real-world long-range projectile motion problems have to take into account.

#### MrChips

Joined Oct 2, 2009
24,611
Why make life more complicated than what is necessary?

#### atferrari

Joined Jan 6, 2004
4,470
Why make life more complicated than what is necessary?
Shooting from the hip just two meters away from the target? Couldn't resist.