Physics

Problem

4\,\text{kg}

block rests on a horizontal surface (

\mu_s=0.25

). A person presses vertically downward on the block with a force of

20\,\text{N}

. What is the largest horizontal pull that can be applied without causing the block to slide? a)

15\,\text{N}

9.8\,\text{N}

14.8\,\text{N}

10\,\text{N}