Question

my que plz ans someone​

Answer 1

Answer:

10

Step-by-step explanation:

At the highest point of the trajectory the downward component of velocity is zero.

So the stone has two components 8 m/s towards x axis and (12 sin 30) perpendicular to it (say z axis).

12 sin 30 =6 so resultant velocity comes out as $\sqrt{6^{2} + 8^{2} } = 10$