1. The problem statement, all variables and given/known data A hand truck is used to move two barrels, each weighing 80 lb. Neglecting the weight of the hand truck, determine (a) the vertical force P which should be applied to the handle to maintain equilibrium when α = 35°, (b) the corresponding reaction at each of the two wheels. Link for diagram: http://people.clarkson.edu/~hhshen/Courses%20Page/Courses/Course6/teach/review2.pdf [Broken] Go to prob. 4.5! 2. Relevant equations Sum of all forces = 0 Sum of all moments = 0 3. The attempt at a solution I honestly just don't understand this period. As far as I got was to make a big triangle where it's 64sin35 to find the side on the ground which is 52.42 which would give us the M= rxF for P. 52.42xP at Mb. Ohhhh, would I have to do that for the forces at g2 and g1 (to find the sides on the 'ground' and cross it with the weights to find P in the equation of the sum of the moments? If so, what about for part b? Thanks a lot in advance!!!