Physics
Physics, 08.04.2020 03:27, meganwintergirl

Your answer is CORRECT. Let v⃗ be the vector with initial point (8,1) and terminal point (6,4). Express v⃗ as a linear combination of the standard unit vectors. a) v⃗ =3i⃗ −2j⃗ b) v⃗ =2i⃗ −3j⃗ c) v⃗ =2i⃗ +3j⃗ d) v⃗ =−2i⃗ −3j⃗ e) v⃗ =−2i⃗ +3j⃗ f) None of the above. Question 2 Your answer is CORRECT. Let v⃗ be the vector with initial point (−5,1) and terminal point (5,3). Find the vertical component of this vector. a) −6 b) 8 c) 2 d) −2 e) 10 f) None of the above. Question 3 Your answer is CORRECT. Find the sum of the vectors u⃗ =6i⃗ −4j⃗ and v⃗ =−2i⃗ −5j⃗ . a) v⃗ =−7i⃗ +2j⃗ b) v⃗ =4i⃗ −9j⃗ c) v⃗ =4i⃗ +4j⃗ d) v⃗ =2i⃗ −7j⃗ e) v⃗ =−9i⃗ +4j⃗ f) None of the above. Question 4 Your answer is INCORRECT. Given vectors u⃗ =⟨−2,−3⟩ and v⃗ =⟨5,2⟩; find 5u⃗ −4v⃗ . a) v⃗ =⟨22,−7⟩ b) v⃗ =⟨−30,−23⟩ c) v⃗ =⟨33,22⟩ d) v⃗ =⟨−25,−28⟩ e) v⃗ =⟨−23,−30⟩ f) None of the above. Question 5 Your answer is INCORRECT. Find the magnitude of the vector v⃗ =4i⃗ −4j⃗ . a) 8 b) 42–√ c) 32 d) −32 e) 0 f) None of the above. Question 6 Your answer is INCORRECT. Given the vector v⃗ =⟨1,3⟩; find a unit vector in the same direction as v⃗ . a) ⟨16,12⟩ b) ⟨310−−√10,10−−√10⟩ c) ⟨1,3⟩ d) ⟨10−−√10,310−−√10⟩ e) ⟨110,310⟩ f) None of the above.

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Your answer is CORRECT. Let v⃗ be the vector with initial point (8,1) and terminal point (6,4). Expr...

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