Exam 3

 Vectors are defined by...(Choose all that apply)

• Scale

• Magnitude

• Direction

• Arrows

What is the direction of the vector in counterclockwise from east notation?

What is the direction of the vector in angle from the nearest axis notation?

A student states that the following vector is 60° N of E. Why is the student incorrect?

Which head-to-tail vector diagram that accurately represents the addition of the following vectors? Resultants are labeled R for clarity.

• 1

• 2

• 3

• 4

A rocket flies South at 13.0 m/s. If the wind blows East at 1.50 m/s, what is the actual velocity of the rocket? Provide both magnitude and direction. Draw a triangle to help you visualize the rocket and wind. (Either counterclockwise from east or angle from the nearest axis is fine).

A boxer hits their opponent with a force of 2000 N at an angle of 35° from the horizontal. What is the horizontal component of this force?

Sketch the trajectory of an angle launched projectile.

Which of the following vector diagrams is inaccurate?

• 1

• 2

• 3

• 4

Which component of velocity changes in projectile motion?

• X / Horizontal

• Y / Vertical

• Neither

• Both