Question

explain motion in plane ​

Answer 1

Answer:

Motion in a plane is also referred to as a motion in two dimensions. For example, circular motion, projectile motion, etc. ... Motion in a plane refers to the point where we consider motion in two dimensions as only two dimensions makes a plane.

Explanation:

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Answer 2

Answer:

In Chapter 2 we discussed the motion of an object in one dimension. Its position was unambiguously defined by its distance (positive or negative) from a user defined origin. The motion of this object could be described in terms of scalars. The discussion about motion in two or three dimensions is more complicated. To answer the question "where am I ?" in two dimensions, one needs to specify two coordinates. In three dimensions one needs to specify three coordinates. To specify the position of an object the concept of the position vector needs to be introduced. The position vector is defined as a vector that starts at the (user defined) origin and ends at the current position of the object (see Figure 4.1). In general, the position vector will be time dependent (t).