Adding Vectors

If vector A has an x component of 12 units and a y component of 7 units, what is the magnitude of vector A?

• 19 units

• 13 units

• 14 units

• 193 units

What is the magnitude of this vector?

• 4

• 5

• 3

• square root of 5

Vector is a quantity with:

• magnitude and direction

• magnitude

• direction

• none of the above

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 

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

The president’s airplane, Air Force One, flies at 250 m/s to the east with respect to the air. The air is moving at 35 m/s to the north with respect to the ground. Find the velocity of Air Force One with respect to the ground.

• 252 m/s
• 222 m/s
• 435 m/s
• 125 m/s

A resultant vector is

• equal to the sum of one vector.

• equal to the sum of two or more vectors.

• equal to the difference of one vector.

What is this Equation: $a^2+b^2=c^2$  

• Standard Vector Form

• Resultant Vector

• Pythagorean Theorem

• Equation of a Circle

A method used to add vectors together

• Tip to Tail Method

• Resultant Vector

• Pythagorean Theorem

• $a^2+b^2=c^2$

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

• 12 miles

• 19 miles, East

• 31 miles

• 43 miles, East