Logs of masses 
and 
are connected by a rope which is passed over a light pulley as shown in figure 1 below.
Figure 1: Connected logs on slopes .
The angles of the inclined planes with respect to the horizontal are 
and 
. The log with mass is 
lower than the log with mass . After the logs move for 3 seconds, they are both at the same height. The coefficient of friction between the logs and the plane is 
. What is the ratio of the mass 
to that of 
?
.
