2.2 Vector Algebra

What is the resultant vector?

• A vector sum of two or more vectors.

• A vector when the magnitude of the vector is zero.

• A vector which has a magnitude of unit length.

Answer explanation

The resultant is the vector sum of two or more vectors.

What is the two laws evolved for the addition of vectors?

• Polynomial law

• Circle Law

• Triangle Law

• Parallelogram Law

Answer explanation

Two laws have been evolved for the addition of vectors:

–

Triangle law of vectors for addition of two vectors.

–

Parallelogram law of vectors for addition of two vectors.

Three points are said to be __________ if all three lie on the same line.

Can the resultant of 2 vectors be zero?

• Yes, when the 2 vectors are same in magnitude and direction

• Yes, when the 2 vectors are same in magnitude but opposite in sense

• No

• 18

• 19

• 19.2

• 19.5

Which of the following is true about the magnitude of a vector?

• It can be negative

• It is always positive or zero

• It is always zero

• It can be any real number

Write the vector from A to B...

• a

• -a

• b

• -b

Tags

CCSS.HSN.VM.A.1

CCSS.HSN.VM.A.2

Write the vector from C to A...

• a

• -a

• b

• -b

Tags

CCSS.HSN.VM.A.1

CCSS.HSN.VM.A.2

Write the vector from E to D...

• y

• -y

• x

• -x

Tags

CCSS.HSG.GPE.B.6