The velocity of an object can be changed by altering the object’s speed, changing its direction of motion, or both.
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For an object moving along a straight line at a variable speed, average velocity is calculated in the same way as average speed.
The term used to describe the speed of an object moving in a definite direction is velocity.
In uniform motion, the object covers equal distances in equal time intervals. For instance, if an object moves 5 m in each second, it maintains this consistent speed.
The numerical value of a physical quantity represents its magnitude.
Certainly! If we consider a park located 3 km east of a library, choosing the library as the reference point places the park at coordinates (3, 0) in a Cartesian system. However, if a different building nearby were chosen as ...
The origin refers to the specific reference point from which distances or coordinates are measured to determine the position of an object.
The position of an object is described relative to the chosen reference point. Different reference points may yield different coordinates or distances for the same object.
Specifying a reference point provides a consistent and clear frame of reference from which the position of an object can be measured or described.
Straight-line motion will be described using simple equations and graphs. Later, the chapter will also discuss circular motion.