# Homework Help: Friction Problem

1. Oct 8, 2006

### 007banshee

Ok this is my AP Homework jsut one question

The block of mass M1 is on a rough horizontal table. The string that attaches it to the block of mass M2 passes over a frictionless pulley of negligible mass. The coefficient of kinetic friction µk between M1 and the table is less than the coefficient of static friction M1

(a) In terms of M1 and M2 determine the minimum value of µk that will prevent the blocks from moving?

The blocks are set in motion byy giving M2 a momentary push. In terms of M1,M2,µk and g determine each of the following..

(b)The magnitude of the acceleration of M1?

(c) The tension in the string?

Okay well i have no idea where to start because there are no given masses only thing known is gravity and nothing more so im really confused does anyone have any ideas..

K i think this might help but ive figured that friction = tension since nothing is moving or at least thats what i think.

Last edited: Oct 8, 2006
2. Oct 8, 2006

### 007banshee

And I don't really need an answer or anything just some help on how to start.