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Laabri

POE Statics Quiz

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Last updated 4 months ago
18 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

If the radius of the circle is 2 inches, what the is the y-coordinate of the centroid of this half circle?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

The centroid of the triangle below is closest to ______ as measured from (0,0)

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3.

Match definitions with the appropriate answers.

Draggable itemarrow_right_altCorresponding Item

moment of inertia

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the geometric center of an object

tension force

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the measure of the tendency of a force to rotate around a point

force gravity

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an indicator of the stiffness of an object related to its chemical properties

moment

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an indicator of the stiffness of an object related to the size and orientation

applied force

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the force that surfaces exert to prevent solid objects from passing through each other

modulus of elasticity

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force that is applied to an object by a person or another object

centroid

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a force that is always downward toward the center of the earth

normal force

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force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends

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4.

What is the reaction force at the end of the roller connection given that the force is in pounds and each grid line is equal to 1 foot?

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5.

A 150 pound man is told to walk the plank on a pirate ship. The plank is a 2" x 6" plank of wood (the height is 2 inches) and 6 feet long. If the plank bends 0.75 inches, what is the modulus of elasticity?

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6.

Calculate the x-component of the given vector.

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7.

Calculate the y-component of the given vector.

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8.

In baseball, home plate is the dimensions of the diagram below. The x-coordinate of the centroid is 8.5 because it is symmetrical. Find the y-coordinate of the centroid of home plate as measured from the given axis.

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

A 2x4 board (whose actual dimensions are 1.5" x 3.5") is positioned on the floor as shown above. The distance between the supports is exactly 70 inches. When your 156 pound friend stands on the board it deflects exactly 1.34". Given the information, calculate the Modulus of Elasticity of the board in pounds per square inch.

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10.

A 2x4 board (whose actual dimensions are 1.5" x 3.5") is positioned on the floor as shown above. The distance between the supports is exactly 70 inches. Find the weight of the force in pounds that makes the beam deflect 0.42" if the Modulus of Elasticity of this board is 1.2 million psi.

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Calculate the magnitude and direction of the resultant force. Click on the correct answer.

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12.

Find the reaction force at B.

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13.

Calculate the moment that the wrench is generating if the length of the wrench is 18 CENTIMETERS

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14.

Calculate the x-coordinate of the centroid of the complex shape.

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15.

Will the seesaw move? If so, in which direction?

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16.

What is d2 if the bears are in static equilibrium?

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17.

What is the resultant force?

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18.