Question

A downward force is applied at the handle of the rigid lever (shown in Figure 9 below) which causes the lever to rotate clockwise about the pin B through an angle of 2°. i. Determine the average normal strain in each wire. The wires are un- stretched when the lever is in the horizontal position. ii. If the diameter of the wire is 3 $mm$, and the modulus of elasticity of the material is $E = 170 \text{ GPa}$, determine the force and stress in each wire.

          A downward force is applied at the handle of the rigid lever (shown in Figure 9
below) which causes the lever to rotate clockwise about the pin B through an
angle of 2°.
i. Determine the average normal strain in each wire. The wires are un-
stretched when the lever is in the horizontal position.
ii. If the diameter of the wire is 3 $mm$, and the modulus of elasticity of
the material is $E = 170 \text{ GPa}$, determine the force and stress in each
wire.

A downward force is applied at the handle of the rigid lever (shown in Figure 9
below) which causes the lever to rotate clockwise about the pin B through an
angle of 2°.
i. Determine the average normal strain in each wire. The wires are un-
stretched when the lever is in the horizontal position.
ii. If the diameter of the wire is 3 mm, and the modulus of elasticity of
the material is E = 170 GPa, determine the force and stress in each
wire.

Added by George D.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Surendra Kumar

12/13/2021

Step 1

Given that the lever rotates through an angle of 2 degrees, we can calculate the change in length of the wires using the formula: Change in length = (original length) * (angle in radians) Since the lever rotates about pin B, the change in length of each wire will Show more…

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A downward force is applied at the handle of the rigid lever (shown in Figure 9 below) which causes the lever to rotate clockwise about the pin B through an angle of 2deg . i. Determine the average normal strain in each wire. The wires are un- stretched when the lever is in the horizontal position. ii. If the diameter of the wire is 3mm, and the modulus of elasticity of the material is E=170GPa, determine the force and stress in each wire. A downward force is applied at the handle of the rigid lever (shown in Figure 9 below) which causes the lever to rotate clockwise about the pin B through an angle of 2o. i. Determine the average normal strain in each wire. The wires are un- stretched when the lever is in the horizontal position. ii. If the diameter of the wire is 3 mm, and the modulus of elasticity of the material is E = 170 GPa, determine the force and stress in each wire. 200mm 200mm 300 mm E 300 mm B C D 200 mm H