Asked by fayera
three vectors A,Band C have a magnitude A=13,B=15,C=17and inclined at angles of 50,-60,and 20 respectively find magnitude and direction of the resultant vector and express it in diagram
2 express these vectorin diagram with their component
2 express these vectorin diagram with their component
Answers
Answered by
Anonymous
Ax = 13 cos 50 = 8.36
Bx = 15 cos -60 = 7.50
Cx = 17 cos 20 = 16.00
Ay = 13 sin 50 = 9.96
By = 15 sin -60 = --13.00
Cy = 17 sin 20 = 2.39
so
Rx = 31.9
Ry = -0.65
|R|^2 = 1018 + 0.42
|R| = 31.9
sin theta = -0.65/31.9
theta = - 1.17deg
Bx = 15 cos -60 = 7.50
Cx = 17 cos 20 = 16.00
Ay = 13 sin 50 = 9.96
By = 15 sin -60 = --13.00
Cy = 17 sin 20 = 2.39
so
Rx = 31.9
Ry = -0.65
|R|^2 = 1018 + 0.42
|R| = 31.9
sin theta = -0.65/31.9
theta = - 1.17deg
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