scored 621

yup.....
using particular angle & time..=>
th=45 degree; g=9.8;h=height;
m=mass of ball
we hv to get optimum value of u...??
ya like this....Momentum transfer should be max..so choose angle of strike very carefully
" Here important variable is angle of strike & strike time min & strike force is max"
accor.
strike time t1;
strike force F;
strike angle th';
Balance the momentum in x,y axis;
Impulse = F*cos(th')*t1=change in momentum in x axis
=m*u*cos(th)-0;............(1)
Impulse = F*sin(th')*t1=change in momentum in y axis
=m*u*sin(th)-m*sqrt(2*g*h);....(2)
solve (1) &(2)
get value of u............(3)
t=2*u*u*sin(th)*sin(th)/g;
R=ucos(th)*t
N get optimum value of R RANGE........
I GOT 621;
I hope fanda is cleared....
ram...........