Question

What do you mean by 2 diamensional motion.
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Answer 1

Two dimensional motion is where an object undergoes motion along the x {\displaystyle x} and y {\displaystyle y} axes "at the same time."

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Answer 2

One dimensional motion is motion along a straight line. The line used for this motion is often the familiar x-axis, or x number line. The object may move forward or backward along this line: Forward is usually considered positive movement, and this movement is usually considered to be to the right.