Understanding Simple Vector Addition

What is considered a positive vector in the context of simple vector addition?

• A vector with a magnitude of zero

• A vector pointing up or to the right

• A vector pointing left or down

• A vector pointing in any direction

If a boat moves forward at 5 m/s and wind pushes it back at 15 m/s, what is the resultant velocity?

• 20 m/s forward

• 10 m/s backward

• 10 m/s forward

• 20 m/s backward

In the example of the boat, what is the direction of the wind's vector?

• To the right

• Upwards

• To the left

• Downwards

An airplane moves at 250 m/s with a headwind of 20 m/s. What is the resultant velocity?

• 230 m/s to the right

• 270 m/s to the right

• 230 m/s to the left

• 270 m/s to the left

What is the convention for determining positive and negative vectors?

• Positive vectors are left and down; negative vectors are right and up

• Positive vectors are up and right; negative vectors are left and down

• Positive vectors are any direction; negative vectors are none

• Positive vectors are down and left; negative vectors are up and right