Plz check if my answers to these questions are correct. Thank you.(adsbygoogle = window.adsbygoogle || []).push({});

1. Express CA + TC – RC + RT as a single vector.

-> CA+TC-CR+RT

-> CA+TR+RT

Answer: CA+TT

2. A 150.0 kg mass is suspended from a ceiling by two cords that make angles of 32 degreeand 40 degree with the ceiling. Find the tension in each of the cords.

Answer: For T1 i got 120.8 kg and for T2 i got 133.7 kg

3.Find a single vector equivalent to each of the following expressions.

a) 2(-2,3,3) + 3(-1,3,-1)

Answer: (-4, 6, 6) + (-3, 9, -3)

: (-7, 15, 3)

b) 2(i-2j+3k) - 3(-j+4j-3k)

Answer: 3i-4j+6k+3j-12j+9k

: (3i-16j+15k)

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Gr.12 Vector Answer Check

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