156 is the answer. so 156.25 is almost the same thing, you just round. It's not hard. Thank you!!!
As we know that here no air resistance while ball is moving in air
So here we will say that
initial total energy = final total energy

here we know that
(as it will be on ground at initial and final position)
so we will say

since mass is always conserved
so we will say that final speed of the ball must be equal to the initial speed of the ball
so we have

Actually according to physics there should be needed a force to move things but our mind does not produce a force ...Apart from myths ...is seems quite impossible to move a object with ur mind
-Thanks for reading
initial momentum of 2 kg blob is given as

here we have



initial momentum of 3 kg blob is given as

here we have



So initially 2 kg Blob has most momentum before they collide
The Rio Grande was the major route prior to the Panama Canal.