Vectors

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 

In practice A of the figure, What is  the magnitude of the  resultant displacement?

• 5 km 
• 8 km
• 11 km
• 15 km

In practice A of the figure, what is the direction of the resultant displacement?

• 63 degrees, South of East
• 63 degrees, North of West
• 27 degrees, North of West
• 27 degrees, South of West

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

If a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?

• 12 km
• 19 km, East
• 31 km
• 43 km, East

What is the x component of the vector given in the diagram?

• 77N
• 92N
• 120N
• 60N

What is the y component of the vector given in the diagram?

• 77N
• 92N
• 120N
• 60N

A force of 6.0 Newtons north and a force of 8.0 Newtons east act concurrently on an object. The magnitude of the resultant of the two forces is

• 1.3 N

• 2.0 N

• 10 N

• 14 N

How do you combine vectors if they are in opposite directions?

• Add

• Subtract (or add a negative)

• Pythagorean Theorem

• Use trigonometry

How do you combine vectors if they are in the same direction?

• Add
• Subtract
• Pythagorean Theorem
• Use Trigonometry