Book review
To describe the position of an object, we need a reference point or origin. An object may seem to be moving to one observer and stationary to another. Example: A passenger inside a bus sees the other passengers to be at rest, whereas an observer outside t
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In Class 9 Science Chapter 8 Motion, students learn to describe the motion of objects along a straight line and express such motions through simple equations and graphs. The chapter also discusses ways of describing circular motion.
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