A block rests on a horizontal surface where the coefficient of kinetic friction is

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

Problem

5\,\text{kg}

block rests on a horizontal surface where the coefficient of kinetic friction is

\mu_k=0.20

. The block is connected by a light string over a frictionless pulley to a

3\,\text{kg}

block that hangs vertically. Immediately after the system is released from rest, what is the magnitude of its acceleration? (Use

g=9.8\,\text{m/s}^2

.) (a)

4.9\;\text{m/s}^2

(b)

3.7\;\text{m/s}^2

(c)

2.5\;\text{m/s}^2

(d)

1.7\;\text{m/s}^2