Asked by david
(Q1) 2 forces act on a point object as follows: 100 at 170 and 100 at 50.Find the resultant force (a)110N at 50 (b)110N at 100 (c)100N at 110 (d) 100N at 50 (Q2) given 3 vectors a=-i-4j+2k,b=3i+2j-2k,c=2i-3j+k,Calculate a-(b-c) (a)-6(b)6(d)9(d)-9 (Q3)The resultant of vectors A and B has a magnitude of 20 units.A has a magnitude of 8 units,and the angle between A andB is 40. Calculate the magnitude of B. (a)12.6(b)16.2(c)14.8(d)18.4
Answers
Answered by
Henry
F1 = 100[170o]
F2 = 100[50o]
X = 100*cos170+100*cos50o = -34.2 N.
Y = 100*sin170+100*sin50 = 94 N.
tan Ar = Y/X = 94/-34.2 = -2.74838
Ar = -70o = Reference angle.
A = -70+180 = 110o
Fr = X/cosA = -34.2/cos110 = 100N.[110o]
F2 = 100[50o]
X = 100*cos170+100*cos50o = -34.2 N.
Y = 100*sin170+100*sin50 = 94 N.
tan Ar = Y/X = 94/-34.2 = -2.74838
Ar = -70o = Reference angle.
A = -70+180 = 110o
Fr = X/cosA = -34.2/cos110 = 100N.[110o]
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.