Final answer:
The force needed to make a ball with a mass of 13kg fall on Earth can be approximated to 127.4N using Newton's 2nd law of motion.
Step-by-step explanation:
According to Newton's 2nd Law of Motion (F = ma), the force needed to make a ball with a mass of 13kg fall on Earth can be calculated. We know that the acceleration due to gravity on Earth is approximately 9.8m/s². Therefore, we can use the equation F = m * g, where F is the force, m is the mass, and g is the acceleration due to gravity.
By substituting the given values into the equation, we have F = 13kg * 9.8m/s². Evaluating this equation gives us a force of approximately 127.4N. Therefore, approximately 127.4 Newtons of force is needed to make the ball fall on Earth.
Learn more about Newton's 2nd Law of Motion