Find Magnitude and Direction of a Vector

Find the direction angle and magnitude of the vector <-7, 0>

• magnitude = 7

• magnitude = -7

• 90°

• 180°

• 270°

Determine the direction and magnitude of the vector 〈7,18〉

• Direction 21.3°
  Magnitude 19.3

• Direction 68.7°
  Magnitude 19.3

• Direction 21.3°
  Magnitude 373

• Direction 68.7°
  Magnitude 373

Determine the direction and magnitude of the vector 〈-11,5〉

• Direction 24.4°
  Vertical 12.1

• Direction65.6°
  Magnitude 12.1

• Direction -24.4°
  Magnitude 12.1

• Direction 155.6°
  Magnitude 12.1

Find the magnitude.

• -10

• -8

• 6

• 10

Find the magnitude.

• 5

• 3

• 25

• -4

The picture shows the flight vector for a helicopter. What is the magnitude and direction of the vector?

• 38.6 mi; 31.2^o east of north

• 26.2 mi; 31.2^o north of east

• 38.6 mi; 31.2^o north of east

• 26.2 mi; 58.8^o north of east

A vector is a ray with both ____________ and _____________.

• Wings and halos

• Space and time

• Direction and magnitude

• Radicals and exponents

Find the magnitude of the vector <10, -8>

Give an exact answer.

Mathematical Equivalence

OFF

Find the magnitude.

• 4

• 5

• 3

• square root of 5

Find the direction of vector <6,5>.

• 219⁰

• 39⁰

• 129⁰

• 309⁰