Question

A 35.0 kg uniform beam is attached to a wall with a hinge while its far end is supported by a cable such that the beam is horizontal. If the angle between the beam and the cable is θ = 59.0° what is the tension in the cable?

Answer 1

Answer:

200.077 N

Explanation:

Mass of beam m= 35.0kg

This is a torque problem

Sum of torques should be zero for equilibrium

Marque along point A is

weight force × half legth of beam - T sin (59°) × Length of the beam=0

35.0 × 9.8 × L/2 = T ×  0.8571673007 × L

==> 343 /2 = T× 0.8571673007

==>  T= 200.077 N