Question

A box of dimensions L and b is kept on truck moving with an acceleration a. If the box doesn’t slide, maximum acceleration for it to remain in equilibrium (w.r.t. truck) is:

• A. g
• B. $g\frac{L}{b}$
• C. $g\frac{b}{L}$
• D. $g\left(\frac{b}{2L}\right)$

Answer 1

The correct option is C $g\frac{b}{L}$


Rotation about P
$mg\left(\frac{b}{2}\right)=ma\left(\frac{l}{2}\right)$
$g=a\frac{b}{l}$