Question

The friction coefficient between the two blocks shown in the figure is $\mu$ and the horizontal plane is smooth. What can be the maximum amplitude $\left(A\right)$ if the upper block does not slip relative to the lower block ?

• A. $A=\frac{(M+m)g}{k}$
• B. $A=\frac{\mu (M+m)g}{k}$
• C. $A=\frac{\mu (M+\mu m)g}{k}$
• D. $A=\frac{\mu (\mu M+m)g}{k}$

Answer 1

The correct option is B $A=\frac{\mu (M+m)g}{k}$