# Static Equilibrium force problem

• music_man05
In summary, the conversation discusses the force needed to support a 2.5 kg chicken in a specific position and the forces involved in this scenario. It also brings up a related problem involving a woman doing a push-up and the forces involved in that scenario.
music_man05
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What force must be exerted by the wind to support a 2.5 kg chicken in the position where one leg is touching the ground 9 cm from the center of mass, the other is up in the air Irrelevant to this problem.
I know the sum of the torque must be equil to zero, but if the force due to the wind is horizontal and the other forces are vertical..can they be set equal to each other? how?
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There should be at least 4 forces:
Gravity
The Normal Force
Friction
Wind

I'd guess you forgot one or two of them.

I am still lost in this problem and have another for you

The same topic...
a) What force must the woman in the figure above exert on the floor with each hand to do a push-up? Assume that she moves up at a constant speed.
Fhand =
147N

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b) The triceps muscle in the back of her upper arm has an effective lever arm of 1.75 cm, and she exerts force on the floor a horizontal distance of 20 cm from the elbow joint. What is the force in her triceps muscle?
Fmuscle =

## 1. What is static equilibrium?

Static equilibrium refers to a state of balance where the net force acting on an object is zero, causing it to be at rest or moving at a constant velocity.

## 2. How do you determine if an object is in static equilibrium?

An object is in static equilibrium if the sum of all the forces acting on it is equal to zero and the sum of all the torques (rotational forces) acting on it is also equal to zero.

## 3. What is the difference between static and dynamic equilibrium?

Static equilibrium occurs when an object is at rest or moving at a constant velocity, while dynamic equilibrium occurs when an object is moving with a constant acceleration.

## 4. How do you solve a static equilibrium force problem?

To solve a static equilibrium force problem, you need to draw a free body diagram of the object and analyze the forces acting on it. Then, you can use the equations of equilibrium (sum of forces and sum of torques) to solve for the unknown variables.

## 5. What are some real-life examples of static equilibrium force problems?

Some examples of static equilibrium force problems include a book sitting on a table, a ladder leaning against a wall, and a bridge supporting the weight of cars.

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