1. The problem statement, all variables and given/known data an block of mass 6kg is sliding down an inclined plane inclined at 45° to the horizontal. Find the acceleration of the mass. 2. Relevant equations F=ma 3. The attempt at a solution Is it correct that the weight times sin45 will equal ma, because thats how i first did it but now I am going through the problem again before handing it in and drew the sketch again and I was thinking what about the weight times cos45? wouldnt that AND wsin45 cause acceleration?