IFoA_CAA_M0 Exam - Topic 3 Question 94 Discussion

Actual exam question for IFoA's IFoA_CAA_M0 exam

Question #: 94
Topic #: 3

[All IFoA_CAA_M0 Questions]

Consider the vector U = (3, -1, 5).

Calculatethe magnitude of vector U to two decimal places.

B5.92

D9.00

C7.00

A2.65

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Suggested Answer: B

by Amina at Jan 26, 2026, 10:53 PM

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Mica

5 days ago

I remember practicing a similar question, but I’m not sure if I should round before or after taking the square root.

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Magda

10 days ago

I think the magnitude is calculated using the square root of the sum of the squares of the components, right?

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Cary

15 days ago

Alright, let's do this. First, I'll square each component, then add them up, and finally take the square root. Easy peasy.

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Twana

20 days ago

Wait, what? I'm lost. Can someone explain this step-by-step?

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Billy

25 days ago

No problem, I got this. The magnitude formula is the square root of the sum of the squares of the vector components.

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Dominga

1 month ago

Hmm, I'm a bit unsure about this one. How do I calculate the magnitude of a vector again?

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Gennie

1 month ago

Okay, I think I can handle this. I just need to use the formula for magnitude and plug in the vector components.

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