Scalars and Vectors – Practice

Questions:

1) Describe the vector illustrated below using:

a) the convention shown

b) the sign convention shown

 

2) Describe the vector illustrated below using:

a) the convention shown

b) the sign convention shown

3) A red car (R) is travelling left at 5.2 m/s and a blue car (B) is travelling right at 9 m/s. Calculate the speed of the blue car relative to the red car.

4) Calculate the velocity of the red car relative to the green car:

 

Quick Answers:

1a) 12 N right    b) -12 N

2a) 4 m/s up    b) + 4 m/s

3) 14.2 m/s right

4) 60 m/s right

Worked Answers:

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