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madeeeeee
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Plz check if my answers to these questions are correct. Thank you.
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. 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)