%3Cp%20src%3D%22http%3A%2F%2Fwww.webassign.net%2Fstatic%2Fwacache069059b7ef840f0
ID: 2272254 • Letter: #
Question
%3Cp%20src%3D%22http%3A%2F%2Fwww.webassign.net%2Fstatic%2Fwacache069059b7ef840f0c74a814ec9237b6ec%2Fimg%2Fquestions%2FmarkSprite.png%22%26nbsp%3Balt%3D%22Incorrect%3A%26nbsp%3BYour%26nbsp%3Banswer%26nbsp%3Bis%26nbsp%3Bincorrect.%22%26nbsp%3Btitle%3D%22Your%26nbsp%3Banswer%26nbsp%3Bis%26nbsp%3Bincorrect.%22%3EFind%26nbsp%3Bthe%26nbsp%3Bmagnitudes%26nbsp%3Bof%26nbsp%3Bvelocities%26nbsp%3B%3Cb%3Ev%3C%2Fb%3E%3Csub%3E%3Ci%3EA%3C%2Fi%3E%3C%2Fsub%3E%26nbsp%3Band%26nbsp%3B%3Cb%3Ev%3C%2Fb%3E%3Csub%3E%3Ci%3EB%3C%2Fi%3E%3C%2Fsub%3E%26nbsp%3Bin%26nbsp%3BFigure%26nbsp%3B3.25%2C%26nbsp%3Bwhere%2C%26nbsp%3B%3Cspan%26nbsp%3Bstyle%3D%22font-family%3A%26nbsp%3B'Cambria'%2C%26nbsp%3B'Georgia'%2C%26nbsp%3Bserif%3B%26nbsp%3Bfont-style%3A%26nbsp%3Bitalic%3B%26nbsp%3Bfont-size%3A%26nbsp%3B1.15em%22%3E%CE%B8%3C%2Fspan%3E%26nbsp%3B%3D%26nbsp%3B%3Cfont%26nbsp%3Bcolor%3D%22red%22%3E20.0%3C%2Ffont%3E%C2%B0%26nbsp%3Band%26nbsp%3B%3Cb%3Ev%3C%2Fb%3E%3Csub%3Etot%3C%2Fsub%3E%26nbsp%3B%3D%26nbsp%3B%3Cfont%26nbsp%3Bcolor%3D%22red%22%3E6.32%3C%2Ffont%3E%26nbsp%3Bm%2Fs.%3Cbr%3E%0A%3Ci%3Ev%3Csub%3EA%3C%2Fsub%3E%3C%2Fi%3E%26nbsp%3B%3D%26nbsp%3B%3Cspan%26nbsp%3Bclass%3D%22qTextField%22%3E%0A%0A%0A%0A%0A%3Cinput%26nbsp%3Bname%3D%22RN_2153345_1_0_2157230%22%26nbsp%3Bvalue%3D%222.67%22%26nbsp%3Bsize%3D%2210%22%26nbsp%3Bautocomplete%3D%22off%22%26nbsp%3Bid%3D%22RN_2153345_1_0_2157230%22%26nbsp%3Bdir%3D%22ltr%22%26nbsp%3Btype%3D%22text%22%3E%3C%2Fspan%3E%26nbsp%3B%3Cspan%26nbsp%3Bid%3D%22RN_2153345_1_0_2157230_mark%22%26nbsp%3Bclass%3D%22waMark%26nbsp%3Bsingle%26nbsp%3BmIncorrect%22%3E%3Cspan%26nbsp%3Bclass%3D%22badgeWrap%22%3E%3Cspan%26nbsp%3Bclass%3D%22badge%26nbsp%3Bcontainer%22%3E%3C%2Fspan%3E%3C%2Fspan%3E%3C%2Fspan%3Em%2Fs%26nbsp%3B%3Cbr%3E%0A%3Ci%3Ev%3Csub%3EB%3C%2Fsub%3E%3C%2Fi%3E%26nbsp%3B%3D%26nbsp%3B%3Cspan%26nbsp%3Bclass%3D%22qTextField%22%3E%0A%0A%0A%0A%0A%3Cinput%26nbsp%3Bname%3D%22RN_2153345_1_1_2157230%22%26nbsp%3Bvalue%3D%223.42%22%26nbsp%3Bsize%3D%2210%22%26nbsp%3Bautocomplete%3D%22off%22%26nbsp%3Bid%3D%22RN_2153345_1_1_2157230%22%26nbsp%3Bdir%3D%22ltr%22%26nbsp%3Btype%3D%22text%22%3E%3C%2Fspan%3E%26nbsp%3B%3Cspan%26nbsp%3Bid%3D%22RN_2153345_1_1_2157230_mark%22%26nbsp%3Bclass%3D%22waMark%26nbsp%3Bsingle%26nbsp%3BmIncorrect%22%3E%3Cspan%26nbsp%3Bclass%3D%22badgeWrap%22%3E%3Cspan%26nbsp%3Bclass%3D%22badge%26nbsp%3Bcontainer%22%3E%0A%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%3C%2Fspan%3E%0A%26nbsp%3B%26nbsp%3B%26nbsp%3B%26nbsp%3B%3C%2Fspan%3E%0A%3C%2Fspan%3E%0A%26nbsp%3Bm%2Fs%3Cimg%26nbsp%3Bsrc%3D%22http%3A%2F%2Fwww.webassign.net%2Furone%2F3-25alt.gif%22%26nbsp%3Bborder%3D%220%22%3E%3C%2Fp%3EExplanation / Answer
vtot = va + vb
x-components=>
6.32 cos(26.5+t) = vacos(t) + vbcos(26.5+23+t)
y-components=>
6.32 sin(26.5+t) = vasin(t) + vbsin(49.5+t)
given t = 20 deg
equations reduce to=>
4.35 = va*0.94 + vb*0.35
4.58 = va*0.34 + vb*0.94
va + vb*0.372 = 4.627
va + vb*2.765 = 13.47
vb(2.393) = 8.843
vb = 3.695
va = 3.252
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.