Anonymous
Anonymous asked in Science & MathematicsPhysics · 1 month ago

bar and weights?

A beam of mass mb = 10.0 kg, is suspended from the ceiling by a single rope. It has a mass of m2 = 40.0 kg attached at one end and an unknown mass m1 attached at the other. The beam has a length of L = 3 m, it is in static equilibrium, and it is horizontal, as shown in the figure above. The tension in the rope is T = 637 N.

1)Determine the unknown mass m1, at the left end of the beam.

m1=

kg

2)Determine the distance, x, from the left end of the beam to the point where the rope is attached. Note: take the torque about the left end of the beam.

x =

1 Answer

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  • 1 month ago

    "As shown in the figure above"?  I am still looking for it.

    The rope must support the total mass  ie 637/9.8 = 65 kg m1 + 40 + 10 = 65-> m1 = 15 kg  

    Torques add to zero.  40*3*9.8 + 10 * 1.5 * 9.8 - 637*x = 0  Find x

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