Because upward buoyant force is slightly higher than gravitation force for this particular object
Answer:
8m/s
Explanation:
Average Speed = distance / time = 400/50 = 8m/s
The momentum goes to the wall
Answer: If the forces on an object are balanced, the net force is zero. If the forces are unbalanced forces, the effects don't cancel each other. Any time the forces acting on an object are unbalanced, the net force is not zero, and the motion of the object changes.