Everything Science Grade 10

CHAPTER 20. VECTORS AND SCALARS 20.1

2. Decide on a reference direction

3. Determine the length of the arrow representing the vector, by using the scale.

4. Draw the vector as an arrow. Make sure that you fill in the arrow head.

5. Fill in the magnitude of the vector.

Example 1: Drawing vectors I

QUESTION

Draw the following vector quantity:→v= 6 m·s−^1 North

SOLUTION

Step 1:Decide on a scale and write it down.

1 cm = 2 m·s−^1

Step 2:Decide on a reference direction

N

North will point up the page

Step 3:Determine the length of the arrow at the specific scale.

If 1 cm = 2 m·s−^1 , then 6 m·s−^1 = 3 cm

Step 4:Draw the vector as an arrow.

Scale used: 1 cm = 2 m·s−^1

N

6 m·s−^1

Physics: Mechanics 369