3.2 vector components

Which of the following describes the vector above?

• 45 cm

• 45 cm at 30 degrees North of East

• 45 cm at 30 degrees East of North

• 45 cm North East

• 45 cm North of South

Find the magnitude of this vector (each square is 1 unit long)

• 4

• 5

• 3

• square root of 5

How would you calculate the magnitude of the x component of this vector?

• 20cos30

• 20sin30

• 30cos20

• 30sin20

What is the y component of the vector given in the diagram?

• 77N
• 92N
• 120N
• 60N

What is the x component of the vector given in the diagram?

• 77N
• 92N
• 120N
• 60N

Which of the following quantities are vectors?

• speed, velocity, acceleration
• velocity, acceleration, force
• force, acceleration, mass
• length, mass, time

Jasmine runs exactly 3 laps around a 400 meter track. What is the DISPLACEMENT?

• 800 m

• 400 m

• 0 m

• 1200 m

The magnitude of the resultant is equal to......

• 2500m

• 800m

• 50m

• 70m

Given the magnitude & direction of the resultant, find the horizontal & vertical components.

• Horizontal 63.9
   Vertical 44.7
• Horizontal 7.3
   Vertical 34.2
• Horizontal -63.9
   Vertical 44.7
• Horizontal -7.3
   Vertical 34.2

What is the x component of the vector?

• 14cos(30)
• 14sin(30)
• -14cos(30)
• -14sin(30)