a snake crawls from a hole to find food. it starts at 8m southwest; then goes 10m 40 degrees north of west; then sensed something moving 9m south from where it is and moves to it. a. how far and in what direction was the moving object from the hole? b. if after realizing that the moving object was not good for food, the snake moved from it because it saw another moving thing, moved to its direction by covering a fourth displacement and is now 20m and 30 degrees east of south from the hole. what is the magnitude and direction of the fourth displacement?

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.