Question

1. what did galileo discover about the amount of speed a ball gained each second when rolling down an inclined plane? what did this say about the ball’s acceleration?

Explanation:

Galileo discovered that a ball rolling down an inclined plane gains the same amount of speed each second. This indicates that the ball's acceleration is constant, as acceleration is the rate of change of velocity (speed in this case considering one - dimensional motion on the incline) with respect to time. Since the speed changes by a fixed amount per second, the acceleration value remains the same over time.

Answer:

Galileo discovered that the ball gains the same amount of speed each second. This shows that the ball's acceleration is constant.