A block rests on a horizontal table

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

4\,\text{kg}

block rests on a horizontal table. The coefficient of static friction between the block and the table is

0.20

. The block is connected by an ideal string over an ideal pulley to a hanging mass

m_h

that is initially at rest. What is the minimum value of

m_h

that will cause the system to start moving? (a)

1.0\,\text{kg}

(b)

0.2\,\text{kg}

(c)

0.8\,\text{kg}

(d)

1.6\,\text{kg}