Question

cos 60 = .500; sin 60 = .866 cos 30 = .866; sin 30 = .500 cos 130= -.643; sin 130 =.767 cos 90 = 1.0 sin 90 = 1.0 cos 75 = .259 sin 75 =.966 cos 105 = .259 sin 105= .966 Given a weight of 100 kips supported by cables as shown, find: T1, T2, RAx, RAy, RBx, & RBy, Solve by force diagram & by summing forces RAy ////////////////////// RBy A B RAx RBx T1 T2 45* 30* C 100 kips Free Body Diagram T1 T2 30* 45* 100 Kips cos 60 = .500; sin 60 = .866 cos 30 = .866; sin 30 = .500 cos 130= -.643; sin 130 =.767 cos 90 = 1 sin 90 = 1 Tan 30= .577 ; Tan 20=.364

          cos 60 = .500; sin 60 = .866
cos 30 = .866; sin 30 = .500
cos 130= -.643; sin 130 =.767
cos 90 = 1.0 sin 90 = 1.0
cos 75 = .259 sin 75 =.966
cos 105 = .259 sin 105= .966

Given a weight of 100 kips supported by cables as shown,
find:
T1, T2, RAx, RAy, RBx, & RBy,
Solve by force diagram & by summing forces

RAy
//////////////////////
RBy
A
B
RAx
RBx
T1
T2
45*
30*
C
100 kips

Free Body Diagram
T1
T2
30*
45*
100 Kips
cos 60 = .500; sin 60 = .866
cos 30 = .866; sin 30 = .500
cos 130= -.643; sin 130 =.767
cos 90 = 1 sin 90 = 1
Tan 30= .577 ; Tan 20=.364

cos 60 = .500; sin 60 = .866
cos 30 = .866; sin 30 = .500
cos 130= -.643; sin 130 =.767
cos 90 = 1.0 sin 90 = 1.0
cos 75 = .259 sin 75 =.966
cos 105 = .259 sin 105= .966

Given a weight of 100 kips supported by cables as shown,
find:
T1, T2, RAx, RAy, RBx, RBy,
Solve by force diagram by summing forces

RAy
//////////////////////
RBy
A
B
RAx
RBx
T1
T2
45*
30*
C
100 kips

Free Body Diagram
T1
T2
30*
45*
100 Kips
cos 60 = .500; sin 60 = .866
cos 30 = .866; sin 30 = .500
cos 130= -.643; sin 130 =.767
cos 90 = 1 sin 90 = 1
Tan 30= .577 ; Tan 20=.364

Added by Jacqueline R.

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