Vector Addition

What is the resultant of these two vectors if A is +10 cm and B is +6 cm?

• +10 cm

• +16 cm

• +4 cm

• +6 cm

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

• multiply

• divide

• use trigonometry

• use Pythagorean theorem

When using the head-to-tail method to draw a vector addition diagram, the resultant is drawn from the

• tail of the first vector to the head of the last vector.

• head of the first vector to the tail of the last vector.

  head of the last vector to the

• tail of the first vector.

• tail of the last vector to the head of the last vector.

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

• 4 miles northeast

• 4 miles northwest

• 3 miles southeast

• 3 miles northwest

 Which of the following describes the given vector?

• 45 cm North East

• 45 cm at 30 degrees North of East

• 45 cm

• 45 cm at 30 degrees East of North

Three vectors are added, following the rules of vector addition. A fourth vector is drawn from the tail of the first vector to the head of the last vector. This fourth vector is referred to as ____.

• the equilibrant

• the mistake

• the hypotenuse

• the resultant

An airplane moves at 141 km/h toward the northeast (45 degrees). What is its component velocity in the northward direction?

• 100 km/h

• 141 km/h

• 41 km/h

• 110 km/h

If vector A has a y-component of 12 units and an x-component of 7 units, which would allow you to solve for the magnitude of vector A?

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If vector A has a y-component of 12 units and an x-component of 7 units, which would allow you to solve for the direction of vector A?

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