explain Galileo's ideas on force.
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Aside from his numerous inventions,Galileo also laid down the first accurate laws of motion for masses.Galileo measured that all bodies accelerate at the same rate regardless of their size or mass. Key among his investigations are: ... developed theidea of force, as a cause for motion.
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the property of matter that is responsible for this nature is called inertia. Galileo is traditionally credited with being the first scientist to formalize this concept. People before him often had it turned around. Many believed that a push was necessary to keep something moving. It certainly seems that way at first thought. If you push a chair across a room, it seems that your push is necessary to sustain the velocity of the chair. If you stop pushing, the chair stops moving.
Galileo, though, believed that when the push on the chair is taken away, the chair should continue to move along without any assistance. And, as it turns out, it will, if the chair is entirely left alone. By 'left alone' we mean that nothing pushes or pulls on the chair.
But the chair is not left alone. There is a force of friction between the chair and the floor. Friction continues to apply a push to the chair after you take your hand away from it. It is this friction that prevents the chair from continuing its motion. The friction quickly brings the chair to a halt. Without friction, the chair would just keep moving.
So, if you get something moving, and then leave it alone, it will continue to move without any more pushes from you. Again, by leaving it alone we mean that no pushes or pulls are placed upon it.
As high as the ball rolls on the left, it rolls on the right.
Galileo figured this out by thinking of a ball rolling down an incline and and then up an identical incline. He imagined this motion:
We must think of a very smooth ball and very smooth inclines. So smooth, in fact, that we do not have to worry about friction slowing down the ball. Also, do not worry about the ball bouncing about when it abruptly changes direction at the bottom of each incline. Imagine this transaction to be gradual, much like a marble rolling in a large bowl.
i hope its hlp ypu
Galileo, though, believed that when the push on the chair is taken away, the chair should continue to move along without any assistance. And, as it turns out, it will, if the chair is entirely left alone. By 'left alone' we mean that nothing pushes or pulls on the chair.
But the chair is not left alone. There is a force of friction between the chair and the floor. Friction continues to apply a push to the chair after you take your hand away from it. It is this friction that prevents the chair from continuing its motion. The friction quickly brings the chair to a halt. Without friction, the chair would just keep moving.
So, if you get something moving, and then leave it alone, it will continue to move without any more pushes from you. Again, by leaving it alone we mean that no pushes or pulls are placed upon it.
As high as the ball rolls on the left, it rolls on the right.
Galileo figured this out by thinking of a ball rolling down an incline and and then up an identical incline. He imagined this motion:
We must think of a very smooth ball and very smooth inclines. So smooth, in fact, that we do not have to worry about friction slowing down the ball. Also, do not worry about the ball bouncing about when it abruptly changes direction at the bottom of each incline. Imagine this transaction to be gradual, much like a marble rolling in a large bowl.
i hope its hlp ypu
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