Math Is Fun Forum

JamieB

Member

Registered: 2007-09-29

Posts: 1

M2 Projectile Angles

http://img213.imageshack.us/img213/1681/question1su9.png - is the problem I'm having. I have absolutely no idea how to tackle this.

Any suggestions?

luca-deltodesco

Member

Registered: 2006-05-05

Posts: 1,470

Re: M2 Projectile Angles

from constant acceleration formula s = ut + 1/2at^2
vertically:

horizontally:

into first:

relating sec and tan

back into third:

taking g = 9.8 (im assuming this for value as a hunch to fit with 98 and 49)

quadratic in tan alpha

to nearest degree

simplest equation now is one for horizontal condition

so answer is 2s

---

The Beginning Of All Things To End.
The End Of All Things To Come.

Pratheepa

Member

Registered: 2007-12-01

Posts: 5

Re: M2 Projectile Angles

hi,
I am a new member to this group...and it looke like its a good one...
can some body help me with equations of projectile or trajectories????
wat r the equation to find the time,height,speed and other stuf?
i tried the wikipedia its confusing me...

thank you
waiting for somene help