Question

7:45 PM Sun Deceed Help? Read It Master it 70% 7. 0/1.25 points Previous Answers SerPSE9 3.P.037. My Notes Ask Your Teacher IfĀ = (7.00 -9.00 ſ) units, Ē = (-9.00 î + 4.00 ſ) units, and C = (27.0 i + 20.0 î) units, determine a and b such that a Ā+D B + CO. Your response differs from the correct answer by more than 10%. Double check your calculations. b = 7 x Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. Need Help? Read It Submit Answer Practice Another Version 8. -/1.25 points SerPSE9 3.P.066. My Notes Ask Your Teacher Vectors A and B have equal magnitudes of 35.0. If the sum of A and B is the vector 35.0 ſ, determine the angle between A and B Need Help? Read It Done

Answer 1

& Elven A = thai. B= -99 +49, • Če 2+30 aĀ + bB+C =0 - a(^_aĵ) + b(-99+48) + (2+24 20})=0 5 (7a-9b+27) î + (-92 +4b+20)ỳ = 0 = 9a-9b+27=0 2 solve these two equations -9Q+46 +2020 s and fined a,b. from above equations as qb-27 Substitute 7 7 thin in second Equation -qa+4h+20=0 2-966-37) +46+2030 > b= 383 , Substitue en Q= qb=27 53 383 U 53 JĀ RAF 87 BAB CAO. & A and B have equal magnitudes V 35. and Ã+5=357 >> A+B) = V0 + 35)= 35 = (35)*= (365)+(35)72 (35) (5) coso. 7 85)3 2 (35)(1+ colo) = Hf cose = { coje a Ž » 10 =

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