Vectors Review - Physics

A car moved 60 km East and 90 km West. What is the displacement and the direction?

• 30 km, West
• 60 km. East
• 90 km
• 150 km

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

Which of the following is a physical quantity that has a magnitude but no direction?

• Vector

• Scalar

• Resultant

• Frame of reference

Which of the following is a physical quantity that has both magnitude and direction?

• Vector

• Scalar

• Resultant

• Frame of Reference

Since vectors are quantities with specified magnitudes and direction, the most appropriate representation of the vector is

• Arrow

• line

• Curve

• angle theta

What's the x-component of the following vector (13 m/s , 55°)

• 10.64 m/s

• 0.28 m/s

• 7.45 m/s

• 20 m/s

Find the magnitude and direction of the resultant if vectors A is 400. units North, and vector B is 250. units East.

Bob walks 4 miles west and stops to rest. He then continues to walk another 3 miles west. What is his displacement?

• 7 miles west

• 1 mile west

• 12 miles west

• 7 miles east

This ballet student executes a sauté from third position which moves her shoulders 15cm up in the air; then she lands again in exactly the same place. What distance did her shoulders travel?

• 15 cm

• 30 cm

• 45 cm

• 0 cm

This ballet student executes a sauté from third position which moves her shoulders 15cm up in the air; then she lands again in exactly the same place. What is the displacement of her shoulders ?

• 15 cm

• 30 cm

• 45 cm

• 0 cm