Add Vectors Scalars

A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south.  What is the magnitude and direction  of the car's resultant displacement?  

• 40 metres, South
• 50 metres, South
• 50 metres, North
• 40 metres, North 

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

Is this a scalar quantity or a vector quantity?
Wind blowing at 20 knots

• Scalar
• Vector

Is this a scalar quantity or a vector quantity?
A deer running 15 meters per second due west

• Scalar
• Vector

If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?

• 20m
• 40m
• 0m
• -20m

Which of these is not a vector quantity? 

• displacement 
• time
• velocity 
• acceleration

Which of the following quantities are vectors?

• speed, velocity, acceleration
• velocity, acceleration, force
• force, acceleration, mass
• length, mass, time

The _______ of two or more vectors is the sum of the vectors.

• components
• scalar
• resultant
• magnitude

What is the net force?
100 N        230 N
<------        --------->

• 30 N to the right
• 230 N to the right
• 130 N to the right
• This is a balanced force

What is the SI unit of measurement for force?

• lbf
• Kilograms
• Newtons
• m/sec^2