explain me galileo's observation on the motion of objects on an inclined plane in an easier way.
According to the scientists, the natural state of bodies is the state of rest. Galileo opposed this concept after his observations.
He observed that when a ball was made to roll down an inclined plane, its speed increased. Similarly if it was made to roll up the inclined plane, its speed decreased. Galileo repeated this experiment by making the surface very smooth. He observed that the ball continued to move for a longer time.
After doing these experiments, Galileo suggested that the speed of the ball moving on a horizontal plane would remain constant in the absence of an external force or force of friction. He said that the natural tendency of all bodies is to oppose a change in their state of rest or motion.
He observed that when a ball was made to roll down an inclined plane, its speed increased. Similarly if it was made to roll up the inclined plane, its speed decreased. Galileo repeated this experiment by making the surface very smooth. He observed that the ball continued to move for a longer time.
After doing these experiments, Galileo suggested that the speed of the ball moving on a horizontal plane would remain constant in the absence of an external force or force of friction. He said that the natural tendency of all bodies is to oppose a change in their state of rest or motion.