Everything Science Grade 10

20.1 CHAPTER 20. VECTORS AND SCALARS

Example 2: Drawing vectors 2

QUESTION

Draw the following vector quantity:→s= 16 m east

SOLUTION

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

1 cm = 4 m

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 = 4 m, then 16 m = 4 cm

Step 4:Draw the vector as an arrow

Scale used: 1 cm = 4 m

Direction = East

N

16 m

Exercise 20 - 3

Draw each of the following vectors to scale. Indicate the scale that you have

used:

1. 12 km south

2. 1,5 m N 45 ◦W

3. 1 m·s−^1 , 20 ◦East of North

4. 50 km·h−^1 , 085 ◦

5. 5 mm, 225 ◦

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(1.-5.) 008u

370 Physics: Mechanics