A block rests on a horizontal table and is connected by a light string over a…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

3.0\,\text{kg}

block rests on a horizontal table and is connected by a light string over a frictionless pulley to a

1.0\,\text{kg}

hanging mass. The coefficient of kinetic friction between the

3.0\,\text{kg}

block and the table is

\mu_k=0.20

. Once the system is set into motion, what is the magnitude of the acceleration of the blocks? (Use

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

.) (a)

2.45\,\text{m/s}^2

(b)

0.49\,\text{m/s}^2

(c)

0.98\,\text{m/s}^2

(d)

1.96\,\text{m/s}^2