- #1

gap0063

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## Homework Statement

A force of 23.52 N pushes and pulls to blocks

as shown in the figure below. The vertical

contact surfaces between the two blocks are

frictionless. The contact between the blocks

and the horizontal surface has a coefficient of

friction of 0.29.

The acceleration of gravity is 9.8 m/s2

What is the magnitude a of the acceleration

of the blocks?

Answer in units of m/s2

## Homework Equations

I know its the sum of Fy=N-mg=0 => N=mg

and the sum of Fx= -fk=max

## The Attempt at a Solution

fk=ukN=> fk=20.4624

but I do not know how to plug in Fcostheta or Fsintheta and I know those need to be used somewhere

[PLAIN]http://img685.imageshack.us/img685/9849/006sl.png

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