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the resultant of two forces is 250n and the same are inclined at 30 n 45 with resultant,one on either side.calculate the magnitute of two forces.
the resultant of two forces is 250n and the same are inclined at 30 n 45 with resultant,one on either side.calculate the magnitute of two forces.


4 years ago

Manas Shukla
102 Points
							For the sake of simplicity lets assume

4 years ago
Manas Shukla
102 Points
							sorry forum bug...Let the two forces be F1 and F2 and resultant be R.Lets assume F1 lies on x axis So if F1 is on x axis , F2 will make 75degrees with x axis and resultant will make 30degrees with x axis.So balancing the force components we get$R\cos 30 = F2 \cos 75 +F1$   and$R\sin 30 = F2 \sin 75$Remember we can find the value of sin75 and cos75 by applying formula of sin(a+b) and cos(a+b). a =45 and b = 30Solving we get F2 = 129.4Nsubstituting value of F2 in first equationF1 = 183N

4 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions