Question Detail

PHY 101 PHY 101 Past Questions Objective Question
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Question

Calculate the magnitude of vectors A and B: A = 3i + 4j - 2k and B = 2i - 6j + 3k.
Options
A √29 and 7
Correct Answer
B √29 and √49
C 5 and 7
D √29 and √41
Correct Answer

Option A is the correct answer.

Detailed Explanation

|A| = √(3² + 4² + (-2)²) = √(9 + 16 + 4) = √29. |B| = √(2² + (-6)² + 3²) = √(4 + 36 + 9) = √49 = 7.

Hint

Magnitude = √(x² + y² + z²).

Question Info

Course: PHY 101
Topic: PHY 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1060 of 1250
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