What is it Many phenomena can be explained by the use of actual ohuervation and simple common sense. Many attempts have been done to provide a set of ideas about motion as introduced in Activity i. One of the famous sien who developed an explanation for motion, which lasted for almost 2000 years, was the Greek philosopher Aristotle (384-322 B.C.). His ideas were based on very common experiences. Aristotle formulated the idea that, for an object to inove, a force must be exerted on it; but when this force is removed, the object comes to rest Another important man is Galileo Galilei. In his experiment, he let a perfectly round ball rolled down an inclined surface and prepared three set ups under ideal conditions (lack of friction and air resistance). The following were his observations: 1. The ball is released at a certain height. It speeds up and, if it rolls up another inclined surface of the same slope, it slows down and reaches the same height (figure 2A). Figure 2A 2. In another set up (figure 2B), the ball is released from the same height as figure 2A. It speeds up and if it is rolling up another inclined surface that is not as steep as figure 2A, it slows down and reaches the same height. However, it covers a farther distance as it rolls up the slope Figure 28 3. In the last set up, the ball is released from the same height as figure 2A. This time, it continues to roll in a flat surface. The ball does not speed up nor blow down (see Pigure 2) as if it continues to move forever. Figure 20 Galileo concluded that in the absence of friction and air resistance, the ball would continue rolling up to a heght above the base equal to the height from where it was released. On a flat surface, the ball would continue to move forever, since there would be no force to its state of notion to change Galileo was the first to suggest that uniform speed atght-line motion was just as natural as at-rest state of motion. He called this tendency of an object to maintain its initial state of motion as inertia

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What is it Many phenomena can be explained by the use of actual ohuervation and simple common sense. Many attempts have been done to provide a set of ideas about motion as introduced in Activity i. One of the famous sien who developed an explanation for motion, which lasted for almost 2000 years, was the Greek philosopher Aristotle (384-322 B.C.). His ideas were based on very common experiences. Aristotle formulated the idea that, for an object to inove, a force must be exerted on it; but when this force is removed, the object comes to rest Another important man is Galileo Galilei. In his experiment, he let a perfectly round ball rolled down an inclined surface and prepared three set ups under ideal conditions (lack of friction and air resistance). The following were his observations: 1. The ball is released at a certain height. It speeds up and, if it rolls up another inclined surface of the same slope, it slows down and reaches the same height (figure 2A). Figure 2A 2. In another set up (figure 2B), the ball is released from the same height as figure 2A. It speeds up and if it is rolling up another inclined surface that is not as steep as figure 2A, it slows down and reaches the same height. However, it covers a farther distance as it rolls up the slope Figure 28 3. In the last set up, the ball is released from the same height as figure 2A. This time, it continues to roll in a flat surface. The ball does not speed up nor blow down (see Pigure 2) as if it continues to move forever. Figure 20 Galileo concluded that in the absence of friction and air resistance, the ball would continue rolling up to a heght above the base equal to the height from where it was released. On a flat surface, the ball would continue to move forever, since there would be no force to its state of notion to change Galileo was the first to suggest that uniform speed atght-line motion was just as natural as at-rest state of motion. He called this tendency of an object to maintain its initial state of motion as inertia​

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Answer:When using an arrow to represent velocity, the length of the arrow stands for speed, and the way the arrow points indicates the direction.Explanation:answer ko Yan lodss

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