Answer:
We know the momentum after the collision MUST be equal to the momentum BEFORE the collision.
Momentum is a VECTOR quantity having both magnitude and direction. The first ball has momentum P =m*v = 2*4 = 8 at 90degrees. The second ball has momentum P = 1*8 = 8 at -90 or 270 degrees. They sum to zero when you perform vector addition.
Explanation:
75 percent off of water and please water the light water and water water and then go back and please water pollution please 880m
They will rise to the 2nd layer of the atmosphere where the temperature decreases by a lot and then they will blow up
