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Grade: 11
        
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?
11 months ago

Answers : (1)

Sushant Kumar
42 Points
							
 \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
 
 
11 months ago
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