Question

In the figure, two blocks are separated by a uniform strut attached to each block with frictionless pins. Block \(A\) weighs 400 N, Block \(B\) weighs 300 N, and the strut \(AB\) weighs 200 N. If \(\mu = 0.25\) under \(B\), determine the minimum coefficient of friction under \(A\) to prevent motion. 

• A. \(0.4\)
• B. \(0.2\)
• C. \(0.8\)
• D. \(0.1\)

Hint:

For connected bodies in equilibrium: • Analyze each block separately. • Use limiting friction for minimum coefficient problems. • Struts with pin joints transmit only axial forces.

Answer 1

The Correct Option is A