Static Equilibrium and Tension in Wires Quiz

What is the mass of the sign used in the static equilibrium problem?

• 3 kg

• 5 kg

• 7 kg

• 10 kg

Which angle does wire number one make with the top of the sign?

• 45 degrees

• 57 degrees

• 52 degrees

• 60 degrees

In static equilibrium, what must be true about the net force acting on an object?

• It must be equal to the weight of the object

• It must be positive

• It must be negative

• It must be zero

Why is there no need to consider torque in this static equilibrium problem?

• The object is not rotating

• The object is too light

• The wires are too short

• The angles are too small

What is the first step in solving the static equilibrium problem?

• Find the length of the wires

• Calculate the weight of the sign

• Draw all the forces

• Measure the angles

How is the force of gravity on the sign calculated?

• Using the length of the wires

• Using the mass and the acceleration due to gravity

• Using the mass and the angle

• Using the tension in the wires

Which trigonometric function is used to find the x-component of tension in wire one?

• Sine

• Cosine

• Cotangent

• Tangent

What is the value of the gravitational force acting on the sign?

• 59 N

• 69 N

• 49 N

• 39 N

What is the calculated tension in wire number one?

• 18.2 N

• 38.2 N

• 28.2 N

• 48.2 N

How is the tension in wire number two related to the tension in wire number one?

• T2 is twice T1

• T2 is 0.87 times T1

• T2 is 1.13 times T1

• T2 is equal to T1