Specifying a reference point provides a consistent and clear frame of reference from which the position of an object can be measured or described.
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Straight-line motion will be described using simple equations and graphs. Later, the chapter will also discuss circular motion.
Objects may move in a straight line, take a circular path, rotate, vibrate, or exhibit a combination of these motions.
These different perceptions indicate that motion is relative and depends on the observer’s frame of reference.
Passengers inside the bus see their fellow passengers as being at rest because they are all moving at the same velocity as the bus.
Three positions are mentioned: C, B, and A, which represent the different instants during the object’s motion along the straight path.
The object moves along a straight line path, passing through positions C, B, and finally A in one direction, and then returns through the same path in reverse, reaching positions C and then B again.
The reference point is O, from where the object begins its journey.
We don’t directly perceive the motion of the Earth because we are moving along with it. The Earth’s motion is so constant and smooth that we do not feel it, and everything around us, including the atmosphere, moves with the ...
We often perceive an object to be in motion when its position changes with time. However, there are situations where motion is inferred through indirect evidence, such as the movement of dust, leaves, and branches of trees indicating the motion ...