A small wooden block of mass is held stationary against a rough vertical brick wall…
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A small wooden block of mass m is held stationary against a rough vertical brick wall by applying a horizontal force F on the block.
Answer the following questions about this situation.
(i) Draw a neat free-body diagram of the block, clearly labeling all the forces acting on it.
(ii) Using appropriate symbols, write the condition that must be satisfied for the block to remain at rest. State the physical significance of each term you use.
(iii) Explain qualitatively how the minimum value of the horizontal force required to keep the block at rest will change if the coefficient of static friction between the block and the wall decreases while all other factors remain the same.