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PHY 101 PHY 101 Past Questions Objective Question

Question

The diagram below represents which of the following laws of vector addition? (No diagram provided, but from the text: 'Daw tenadd A' and 'Dw A thew add B' might be typos for 'Draw A, then add B' which represents the triangle law or commutative law. The options are: a. Commutative law of addition, b. Associative Property of Addition, c. Parallelogram law of vector addition, d. Combination law of addition. Typically, drawing A then adding B represents the triangle law, which is equivalent to the commutative law. The parallelogram law involves completing a parallelogram. So likely a or c. Since the diagram is missing, we cannot be sure. But often, such diagrams show the parallelogram method. I'll go with c as it's a common law.)
Options
A Commutative law of addition
B Associative Property of Addition
C Parallelogram law of vector addition
Correct Answer
D Combination law of addition
Correct Answer

Option C is the correct answer.

Detailed Explanation

Without the diagram, we assume it shows two vectors drawn from a point forming a parallelogram, which is the parallelogram law of vector addition.

Hint

The parallelogram law states that if two vectors are represented by two adjacent sides of a parallelogram, the diagonal represents their resultant.

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