A stone must be projected horizontally from a point P, which is h meters above the foot of a plane inclined at an angle theta with horizontal as shown in figure. Calculate the velocity v of the stone so that it may hit the inclined plane perpendicularly>

A stone must be projected horizontally from a point P, which is h mete

1.	A stone must be projected horizontally from a point P, which is h meters above the foot of a plane inclined at an angle theta with horizontal as shown in figure. Calculate the velocity v of the stone so that it may hit the inclined plane perpendicularly>
Answer» ANSWER :`v=sqrt((2gh)/(2+cot^(2)THETA))`