Three coplanar concurrent forces of magnitudes 3 N, 4 N and 5 N are in equilibrium. What is the angle between the 3 N an...
Type: MCQ • Marks: 1
Three coplanar concurrent forces of magnitudes 3 N, 4 N and 5 N are in equilibrium. What is the angle between the 3 N and 4 N forces?
Options
A. 180°
B. 120°
C. 60°
D. 90°
Explanation
For equilibrium, the resultant of the 3 N and 4 N forces balances the 5 N force. Since 3²+4²=5², the first two forces are perpendicular, so the angle between them is 90°.
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