Vectors

The outcome when 2 or more vectors are combined

• Resultant vector

• Component vector

• Resultant scalar

• Component scalar

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

• 63.4° South of East

• 53.1° South of West

• 26.6° West of North

• 26.6° North of West

A vector has both ____ and _____

• speed and length
• magnitude and direction
• degrees and radians
• style and grace

Tags

CCSS.HSN.VM.A.1

Find AB, with initial point
A(1, -3) and terminal point B(1, 3)

• <2, 0>
• <0, 6>
• 2i
• 6j

Find the magnitude of the vector -5i + 12j

• 13
• 10.91
• 7
• 17

Find the magnitude of a vector using ...

• Sine & Cosine
• Inverse Tangent
• Pythagorean Theorem
• Multiplication

Tags

CCSS.HSG.SRT.C.8

CCSS.HSN.VM.A.1

Which of the following is always positive?

• vector
• scalar
• direction
• magnitude

Find the value of t if the vectors 
3i - j + tk and
2t i - 3j - 4k are perpendicular.

• t = -1
• t = 1
• t = -1.5
• t = 1.5

Find cos ϴ (the ratio), where ϴ is the angle between vectors a = i + j and b = -2i + 3j. 

• 1 ∕ √22
• 1 ∕ √24
• 1 ∕ √26
• 1 ∕ √28

Calculate the dot product of the two vectors
v=1i+4j-3k and
u=1j- 2k

• 10
• 11
• 3
• -3