A stone is thrown up at a slope of inclination β and speed V from an inclined ground surface at an angle θ from the horizontal. The stone reaches its greatest distance from the slope after a time of ___
1
\(\frac{{Vsin\theta }}{{gcos\beta }}\)
2
\(\frac{{Vcos\theta }}{{gsin\beta }}\)
3
\(\frac{{Vsin\beta }}{{gcos\theta }}\)
4
\(\frac{{Vcos\beta }}{{gsin\theta }}\)