Answer:
V initial = 29.4 m.s²
Explanation:
( Using the laws of motion)
V final = V initial + Acceleration × time
0 = V initial + ( -9.8)(3)
29.4 = V initial
* I took upward as positive that's why I substituted -9.8 *
* for V final we know that at maximum height the ball is not moving thats why is = 0 *
Answer:
Vertical acceleration 9.8 m/s² downward
Horizontal acceleration 0.0 m/s²
assuming no air resistance.
I'm pretty sure it would be A. As fluids are able to move and flow pretty easily.
We know that either team is winning which means that the cumulative forces (sum of each girl force) on both teams are equal.
This means,

being x the force of the fourth girl on the east team.
Solving to x, you get

The fourth girl on the east is pulling with a force of 220N.