H2P-513
Conditions for equilibrium
H2 Physics · JC 2 · Easy · Conditions for equilibrium
A uniform beam of weight 800 N is hinged to a wall and held at 25° above the horizontal by a cable attached to its free end. The cable makes an angle of 55° above the horizontal. The beam is in equilibrium. Using the principle of moments about the hinge, what is the tension in the cable?
- 7.3 × 10² N
- 4.0 × 10² N
- 8.8 × 10² N
- 1.6 × 10³ N
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