I long time try, and found this formula:

4*h * n ( n + 1 ) > H

minimal n - is answer!

but I doubt, that this is correct.

It's correct or not?

Re: I long time try, and found this formula:

v0*t*sin(theta)+0.5*g*sin(theta)*t^2 *n>=sqrt(H*H+l*l)

v0=sqrt(2*g*h)

t=2*v0/g

tan(theta)=H/l.

seems to be correct

PS. this problem is too simple..

*Edited by author 12.10.2017 06:25*

*Edited by author 12.10.2017 06:40*

Re: I long time try, and found this formula:

the correct formula is

4*h*n*(n+1)>(H*H+l*l)/H

Re: I long time try, and found this formula:

Maybe provide some explanation

Re: I long time try, and found this formula:

Oh

Your previous comment is the explanation