Into to Vector Addition (2D Kinematics)

A vector includes ______ and ________.

• direction, magnitude

• magnitude, units

• direction, units

• scalars, scalars

A resultant vector is

• equal to the sum of one vector.

• equal to the sum of two or more vectors.

• equal to the difference of one vector.

What is the resultant of these two vectors?

• +17 m

• +3 m

• -17 m

• -3 m

If two vectors to be added are at right angles, you will need to....

• Multiply

• Divide

• Pythagorean Theorem

• Use trigonometry

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4
• 55.2
• 20.15
• 19.4

Bob walks 2 miles north and turns west and walks 2 miles. What is Bob's general displacement?

• 4 miles northeast

• 4 miles northeast

• 3 miles northwest

• 3 miles southeast

What is the magnitude of the resultant vector, r?

• 3

• 4

• 5

• 7

An airplane flies due north at 150 km/h with respect to the air. There is a wind blowing at 75 km/h due east. What are the plane's speed with respect to the ground?

• 167.7 km/h at 26.6 degrees north of east

• 225 km/h at 26.6 degrees east of north

• 167.7 km/h at 63.4 degrees north of east

• 129.9 km/h at 63.4 degrees north of east

• 129.9 km/h at 26.6 degrees east of north

What is the resultant of the two vectors shown above?

• +5

• -5

• +15

• -15

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