hmmm, i tried that and still got answer wrong, these were my steps
What is the given answer and what answer are you getting?hmmm, i tried that and still got answer wrong, these were my steps
100t-86.6t=600, therefore t=44.78
then i plugged t=44.78 into y=1/2gt^2+vsinθt +H (with v=100 and θ =30)
since we have the time of flight the value of y will be zero leading to the only unknown being H.