Suppose we are at the top of a $10$ m tall building and we are free to throw a ball at any angle from the top with a speed of $10\sqrt2ms^{-2}$ .What is its maximum possible horizontal range on the ground as measured from the bottom of the building? Also if possible find the angle of projection with the horizontal.
Should I apply envelope of parabola or am I missing something trivial? So how do I solve it?
Thanks for explaining the method!!