Reviewing vectors
Clement Radcliffe, Contributor

As we continue the review of VECTORS, we will begin with the solution to last week's homework.

Homeword

The vectors b, c and d are given in the diagram below. Express these in the form

CONTINUING VECTORS

The arithmetic operations may be applied to vectors as follows:

I do hope that you realize that the negative sign reverses the direction of the vector.

Let us attempt the following examples which will clearly illustrate the above. It is advisable that you evaluate the answers and check them against mine.

In number (3) above could you use the Cartesian diagram to investigate the relationship between the vectors b and 2b?

NB: Did you notice that 2b is twice the length of b and in the same direction? I am sure that you will find it interesting to attempt all the questions in the Cartesian diagram and endeavour to determine the various relationships.

If you have mastered the above we will go on to a Special Vector - THE POSITION VECTOR.

POINTS TO NOTE

* Clement Radcliffe is principal of Glenmuir High School in Clarendon.