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Share/Save/Bookmark Login/ Register to Bookmark Topic : "projectile motion" Started by rahul1993

rahul1993

#1 Posted 11:49pm 02-07-09  

projectile motion

[image]22058553.jpg[/image]

the book says ans to part (b)is unanswerable but i am getting an answer



   

rahul1993

#2 Posted 11:50pm 02-07-09  

Re: projectile motion

[image]22058802.jpg[/image]

please tell me where am i wrong
   

Anirudh

#3 Posted 07:16am 04-07-09  

Re: projectile motion

in the derivation of the first trajecotry  
you haven't squared Cos θ  

and [im]http://codecogs.izyba.com/gif.latex?%5Ctan%5E%7B-1%7D%204/5[/im]  is not 78.6 . it has to less than 45
   

rahul1993

#4 Posted 10:08am 04-07-09  

Re: projectile motion

@anirudh. thanks for spotting that. i got my mistake
   
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