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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?

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?

Grade:11

1 Answers

Sushant Kumar
42 Points
5 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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