Pre WA1 Quiz - 3-4

A vector includes direction and (a)   .

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

• 9.4
• 55.2
• 20.15
• 19.4

Bob walks 2 000 m south and turns west and walks 2 km. What is Bob's general displacement?

• 4 km northeast

• 4 km northeast

• 3 km southwest

• 3 km southeast

Cameron (Cam for short) Per hikes to a campsite where he will spend the evening. He hikes 6.0 km, east and 3.0 km, north before ending 4.0 km west. The magnitude of Cam's displacement is (a)   km (in 3 sif)

A boat is rowed directly upriver at a speed of 2.5 m/s relative to the water. Viewers on the shore find that it is moving at only 0.5 m/s relative to the shore. What is the speed of the river (current)? Is it moving with or against the boat?

• 3.0 m/s against the boat

• 3.0 m/s with the boat

• 2.0 m/s against the boat

• 0.5 m/s with the boat

• 2.0 m/s with the boat

Aaron Agin was doing his vector homework. He failed to label the resultant. Now he does not know which vector is R. Help him out!

• Vector A is the resultant.

• Vector B is the resultant.

• Vector C is the resultant.

• Vector D is the resultant.

Aaron Agin was doing his vector homework. He failed to label the resultant. Now he does not know which vector is R. Help him out!

• Vector A is the resultant.

• Vector B is the resultant.

• Vector C is the resultant.

• Vector D is the resultant.

The diagram is a vector addition diagram. Which equation accurately describes the vectors that are being added?

• A + B + C = D

• A + B + D = C

• C + A + B = D

• D + C + A = B

Choose the arrow that best represents what the resultant vector would be.

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Choose the arrow that best represents what the resultant vector would be.

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