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A ball is at same height after time t1 and t2 from point of projection in ground to ground projectile motion then the height of the point from ground is?

Ankita Roy , 6 Years ago
Grade 11
anser 1 Answers
Sushant Kumar

Last Activity: 6 Years ago

 \frac{1}{2}gt_{1}t_{t2}
 
y=usin\Theta t -1/2gt^{2}          ---------(1)
at t1 and t2 y is same hence
usin\Theta t_{1} -1/2gt_{1}^{2}=usin\Theta t_{2} -1/2gt_{2}^{2}  --------------------(2)
from here we find value of usin thetha and put it in eq 1 where we can put t=either tor t2 both give same answer
 
hope this help
 
 

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