1. Obtain the resultant of a number of forces acting on a body.
2. Obtain the resultant of the same forces by drawing a vector diagram to scale to find its magnitude and
3. Determine of the resultant using the analytical method, including the law of cosine for the magnitude and the
law of sine to find its direction in one instance. The components method will also be used.
1. Force table
5. Strings for suspending the masses
2. Weight holders (#4).
6. A ring
3. Pulleys (#4).
7. A metal pin
4. Slotted weights
8. A protractor
9. Sheets of plain paper and graph paper.
Review Questions and Exercises
1) What is the basic difference between scalars and vectors?
2) Is temperature is a vector quantity? What do plus and minus temperature
3) A vector
has a magnitude of 60 m and directed as shown.
components of this vector.
4) What are, briefly, the steps to find the resultant of vectors?
5) What is the difference between a resultant & equilibrant vector & what do they physically mean?