 # A Bar Suspended By Two Vertical Strings Mastering Physics

## A Bar Suspended By Two Vertical Strings Mastering Physics

Pole hanging from two vertical ropes ??? 3

The example shows a model of a crane that can be mounted on a door. A uniformly rigid horizontal block m m1 = 80 kg and length L = 6.00 m without m is supported by two vertical ropes. Rope A is tied at a distance of d = 1.4 m from the left end of the rod and is attached to the upper plate. Bowstring B is attached to the left end of the block and r is attached to it. A crane carries an object m m2 = 3500 kg at a distance of x = 5.8 m from the left end of the ■■■■.

In this case, the positive torque is counterclockwise. Use 9.81 m / s / s to accelerate gravity.

(1) Determine the T (A) tension in string A.

(2) T (B) Determine the intensity of tension in string B.

Can anyone do that?

Here is an outline.

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Once the rod is in equilibrium, the torque is measured to the left.

T (B) = 0 due to torque

Torque is counterclockwise because T (A) = T (A) * 1.4

Torque by bar weight = 80 * 9.81 * 3 = 2354.4 N clockwise

Torque through the weight of the object = 3,500 * 9.81 * 5.8 = 199143 N clockwise

Counterclockwise Torque = Clockwise Torque

T (A) * 1.4 = 201.497.4

T (A) = 143,926.71 N

T (B) + m1g + m2g = T (A)

T (B) = 143 926.71 3580 * 9.81

T (B) = 108806.91 N

(1) T (A) The tension of wire A is 143,926.71 N.

(2) T (B) The stress intensity in string B is 108806.91 N.

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