Gravitational Force

When a ball is thrown in the air upward, it eventually comes back down due to the gravitational force acting on it. This force is the attractive force between two masses, in this case, the ball and the Earth.

Explanation

- When the ball is thrown upwards, it moves against the force of gravity initially.
- However, as it reaches the peak of its trajectory, the gravitational force starts to pull it back towards the Earth.
- This force causes the ball to accelerate downwards until it eventually reaches the ground.

Impact of Gravitational Force

- The strength of the gravitational force depends on the mass of the two objects and the distance between them.
- In the case of the ball and the Earth, the Earth's mass is much greater, so the force of gravity pulls the ball towards it.
- This force is what causes objects to fall towards the Earth when they are not supported.

In conclusion, the reason why a ball thrown upwards eventually comes back down is due to the gravitational force between the ball and the Earth. This force causes the ball to accelerate downwards, following a path determined by the laws of physics.

Explanation:
When a ball is thrown in the air upward, it comes down after some time due to the force of gravity. This force is responsible for the attractive interaction between all objects with mass. Here is a detailed explanation of why the ball comes down:
1. Law of Gravity:
- The ball experiences a force of gravity as soon as it is thrown upwards.
- According to Newton's Law of Universal Gravitation, every object in the universe attracts every other object with a force that is directly proportional to their masses and inversely proportional to the square of the distance between their centers.
- The force of gravity pulls the ball towards the center of the Earth.
2. Initial Velocity and Acceleration:
- When the ball is thrown upwards, it has an initial velocity in the upward direction.
- However, due to the force of gravity, the ball experiences a downward acceleration throughout its motion.
- This acceleration causes the ball to slow down until it reaches its highest point (maximum height).
3. Maximum Height:
- At the highest point of the ball's trajectory, its velocity becomes zero momentarily.
- The force of gravity continues to act on the ball, pulling it downwards.
4. Downward Motion:
- After reaching its maximum height, the ball starts to move downwards due to the continued influence of gravity.
- The downward acceleration increases the ball's velocity, causing it to fall faster.
5. Terminal Velocity:
- Eventually, the ball reaches a point where the force of gravity is balanced by the force of air resistance (friction).
- At this point, the ball reaches its terminal velocity - the maximum speed it can achieve while falling.
- The ball continues to fall at a constant speed until it reaches the ground.
Therefore, the ball comes down after being thrown upwards because of the force of gravity acting upon it.