Step 1: Analyze the pattern.
The pattern here is:
\[
\frac{84}{9} = 9.33 \text{and} \frac{124}{?} = 9.33.
\]
Step 2: Solve for the unknown.
Solving for \( ? \) from \( \frac{124}{?} = 9.33 \):
\[
? = \frac{124}{9.33} \approx 9.
\]
Final Answer: \[ \boxed{9} \]
A weight of $500\,$N is held on a smooth plane inclined at $30^\circ$ to the horizontal by a force $P$ acting at $30^\circ$ to the inclined plane as shown. Then the value of force $P$ is:
A steel wire of $20$ mm diameter is bent into a circular shape of $10$ m radius. If modulus of elasticity of wire is $2\times10^{5}\ \text{N/mm}^2$, then the maximum bending stress induced in wire is: