Answer:
Explanation:
The vertical component of the velocity of stone = 25 sin 30 = 12.5 m/s .
Horizontal component = 25 cos 30 = 21.65 m/s
After the throw , the body will go upwards with reducing velocity and at top position , its velocity becomes zero . Again it comes down and its velocity gains . When it reaches the surface , it regains its earlier velocity which was in the beginning of the throw that is 25 sin30 but in downward direction .
So its vertical velocity when it reaches the ground will be 25 sin 30 = 12.5 m/s in downward direction.
