question_answer

A stone is thrown from a point with a speed 5 m/s at an elevation angle of \[\theta \]. From the same point and at the same instant, a person starts running with a constant speed 2.5 m/s to catch the stone. If the person will be able to catch the ball then, what should be the angle of projection \[\theta \]?

A) \[75{}^\circ ~~\]         

B)        \[30{}^\circ \]        

C) \[60{}^\circ \]  

D)        \[45{}^\circ \]