Here's why:
* Gravity: The primary force acting on the ball is gravity. Near the Earth's surface, the acceleration due to gravity is approximately 9.8 m/s².
* Force and Mass: Newton's second law of motion states that force (F) equals mass (m) times acceleration (a): F = ma.
* Calculating the Force: Therefore, the force of gravity acting on the 1 kg ball is (1 kg) * (9.8 m/s²) = 9.8 Newtons.
Important Note: This calculation assumes there's no air resistance. In reality, air resistance would oppose the force of gravity, making the net force slightly less than 9.8 Newtons.
