i just dont get the idea on how to do this [projectile motion]


by suryanarayan
Tags: motion, projectile
suryanarayan
suryanarayan is offline
#1
May1-12, 11:16 AM
P: 14
i dont know how this works.....when a body is projected at an angle "theta" with the horizontal above a height 'h'...what is its maximum height and maximum range???should i just treat it as two separate motions or is there another way to do it....i can solve if it is just a parabolic projection from the ground or if it is horizontal projection from an height(parallel to the horizontal)

please help???
Phys.Org News Partner Physics news on Phys.org
Physicists consider implications of recent revelations about the universe's first light
Vacuum ultraviolet lamp of the future created in Japan
Grasp of SQUIDs dynamics facilitates eavesdropping
Ken G
Ken G is offline
#2
May1-12, 11:34 AM
PF Gold
P: 3,075
The preferred technique is to break the motion into two independent components, vertical and horizontal. You can write F=ma for the two componenents separately, and the only thing that connects them is they share the same "t" (time). Often, the horizontal (x) component is simply motion at a constant speed, x=vt. The vertical (y) component is the same as if you throw a particle straight up with some initial speed u. Then note that v and u are the components of the initial velocity, using trigonometry on the angle theta.


Register to reply

Related Discussions
Will this idea launch a projectile? Weapon. General Physics 6
projectile motion/ Half projectile motion (falling from height with horizontal veloc) Introductory Physics Homework 1
projectile motion. how long does it take for the projectile to git the ground? Calculus & Beyond Homework 4
Projectile Motion assignment - Building a projectile launcher Introductory Physics Homework 3
Uniform Circualr Motion with Projectile Motion problem (Extremely confusing): Introductory Physics Homework 4