Question

Two vectors of different physical quantities can be ______ to obtain a scalar.

Options

• added

• subtracted

• multiplied

• divided

Answer 1

Two vectors of different physical quantities can be multiplied to obtain a scalar.

Explanation:

Two vectors of different physical quantities can be multiplied (dot product) to give a scalar, for example, Force × Displacement = Work (a scalar), which is not possible with addition or subtraction as those require the same physical quantity.