Question

1. what relationship did galileo discover about a ball’s acceleration and the steepness of an incline? what acceleration occurs when the plane is vertical?

Explanation:

Galileo found that the acceleration of a ball rolling down an incline is directly proportional to the steepness of the incline. When the plane is vertical, the ball is in free - fall and its acceleration is equal to the acceleration due to gravity (approximately 9.8 m/s² near the Earth's surface).

Answer:

Galileo discovered that the ball's acceleration is directly proportional to the steepness of the incline. When the plane is vertical, the acceleration is approximately 9.8 m/s² (acceleration due to gravity near Earth's surface).