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What is the result of adding two vectors in opposite directions?

A vector in the same direction as the smaller vector.

A vector in the same direction as the larger vector.

A vector with zero magnitude.

A vector whose magnitude is the sum of the two magnitudes.

The vector sum of two vectors A = 5 m and B = 7 m at an angle of 90° is:

√(5² + 7²) = 8.6.

12 m.

√(5² − 7²) =3.8 m.

2 m.

Which of the following is true about a vector's components?

Components cannot be used to represent a vector.

The components must have equal magnitudes.

The components are always perpendicular to each other.

Components can only be resolved along the x and y axes.

Which of these operations can be performed on scalar quantities?

Multiplication.

Addition.

Subtraction.

All of the above.

Which of the following is a scalar quantity?

Force.

Displacement.

Distance.

Velocity.