Consider the figure below. (a) What are the x- and y-components of vector vector
ID: 1419258 • Letter: C
Question
Consider the figure below.
(a) What are the x- and y-components of vector vector E in terms of the angle and the magnitude E? (Use any variable or symbol stated above as necessary.)
Ex = _______
Ey = ______
(b) For the same vector, what are the x- and y-components in terms of the angle and the magnitude E? (Use any variable or symbol stated above as necessary.)
Ex = _______
Ey = ______
(I've tried putting in Ex for part a as the -vectorEcos(theta) and I tried it as positive. but webassign marked it wrong. HELP! Thank you in advance! I can use all symbols and etc. on webassign but I'm just not sure what to do since it marked my answer wrong. I was working of trig logic as in cos=adj/hyp and sin=opp/adj)
Explanation / Answer
in figure vector makes angel theta with -x axis
Ex = -E*cos theata
Ey = E*sin theta
in figure vector makes angel "phi " with +y axis
theta + phi = 90
Ex = -E*sin phi
Ey= E*cos phi
where E = is magnitude of vector in above represnetation
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