A block on a horizontal surface is connected by a light string over a frictionless…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

6\,\text{kg}

block on a horizontal surface is connected by a light string over a frictionless pulley to a hanging mass

m

. The coefficient of static friction between the block and the surface is

0.25

. What is the minimum value of

m

that will just start the block moving? (a)

2.50\,\text{kg}

(b)

1.50\,\text{kg}

(c)

2.00\,\text{kg}

(d)

1.25\,\text{kg}