Asked by John
A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°. What is the angle that the resultant makes with
the 175-pound force?
the 175-pound force?
Answers
Answered by
Reiny
complete the "parallelogram"
let the resultant have a magnitude of R
I see it as:
R^2 = 175^2 + 230^2 - 2(175)(230)cos138°
find R
label the angle the resultant makes with the 175 pound force be Ø
then by sine law:
sinØ/230 = sin 138°/R
find Ø
let the resultant have a magnitude of R
I see it as:
R^2 = 175^2 + 230^2 - 2(175)(230)cos138°
find R
label the angle the resultant makes with the 175 pound force be Ø
then by sine law:
sinØ/230 = sin 138°/R
find Ø
Answered by
Reiny
Just noticed that Steve did the same question using components
http://www.jiskha.com/display.cgi?id=1343845975
take your choice, both give 24° to the nearest degree.
http://www.jiskha.com/display.cgi?id=1343845975
take your choice, both give 24° to the nearest degree.
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