Question

In the given figure, O is the centre of regular pentagon ABCDE. Five forces each of magnitude $F_0$ are acted as shown in figure. The resultant force is

• A. $5$F _ { 0 }$
• B. $5$F _ { 0 } \cos 72 ^ { \circ }$
• C. $5$F _ { 0 } \sin 72 ^ { \circ }$
• D. zero

Answer 1

The correct option is D zero

All forces are acting at an equal angle with each other and completing 360 degrees and are of the same magnitude so their resultant will be zero.