Final answer:
To determine the force exerted by each brace on a wind-struck wall, multiply the wall's area by the wind pressure (650 N/m²) to get the total force, then divide this number by the number of braces.
Step-by-step explanation:
The student's question is about calculating the force exerted by each of the 10 braces on a wall that is subject to a wind force. Given that the wall is 17.0 meters high, 11.0 meters long, and receives a horizontal force of 650 N per square meter due to wind pressure acting at the halfway point of its height, we can approach this problem using physics principles related to equilibrium and leverage.
Firstly, we calculate the total force exerted on the wall by the wind:
total wind force = area of the wall × force exerted per square meter = (17.0 m × 11.0 m) × 650 N/m².
Next, we can infer that the wind force acts at the midpoint of the wall's height, which is 17.0 m / 2 = 8.5 m from the base. To find the force exerted by each brace, we divide the total wind force by the number of braces, which is 10.
Lastly, to provide the exact numeric answer, we must perform the multiplication of the area by the pressure and then divide by the number of braces, which will yield the force per brace that keeps the wall stable. Remember, this is under the simplifying assumption that each brace supports an equal amount of force.