<h2>
Answer:</h2>
1163.7N/m
<h2>
Explanation:</h2>
When a force caused by an object is applied to a spring, the spring applies an equal and opposite force to that object. This is evident in Hooke's law which states that the force(F) applied to a spring, either to cause extension or compression, is directly proportional to the length of the extension or compression (x). i.e
F = k x ---------------------(i)
Where k is the proportionality constant called <em>spring constant.</em>
<em />
<em>Given;</em>
F = force exerted on the bowstring = 263N
x = length of extension = 0.226m
<em>Substitute these values into equation (i) as follows;</em>
263 = k (0.226)
<em>Solve for k;</em>
k = 263 / 0.226
k = 1163.7N/m
Therefore, the spring constant of the bow is 1163.7N/m