Solve Simple Physics Homework: Find Box Acceleration

[physics102]

Homework Statement

A box with a mass of 12kg rests on a horizontal surface. The coefficient of kinetic friction between the box and surface is 0.50. The box is connected to a rope that passes around a pulley and suspends a second box of mass 24kg. What is the acceleration of the second box?

Homework Equations

The Attempt at a Solution

A) 9.8m/s2 [down]
B) 6.5m/s2 [down]
C) 0.5m/s2 [down]
D) 4.9m/s2 [down]

which one?

 

[fluidistic]

Homework Statement

A box with a mass of 12kg rests on a horizontal surface. The coefficient of kinetic friction between the box and surface is 0.50. The box is connected to a rope that passes around a pulley and suspends a second box of mass 24kg. What is the acceleration of the second box?

Homework Equations

The Attempt at a Solution

A) 9.8m/s2 [down]
B) 6.5m/s2 [down]
C) 0.5m/s2 [down]
D) 4.9m/s2 [down]

which one?

First of all, welcome to PF!
Second, here you must show an attempt, otherwise we don't have a clue about where you're stuck.
Regarding the problem, I suggest you to draw a free body diagram for each block and use the fact that the net force is worth mass times acceleration. (Newton' second's Law)