1. The problem statement, all variables and given/known data Children in a tree house lift a small dog in a basket 5.05 m up to their house. If it takes 221 J of work to do this, what is the combined mass of the dog and basket? 2. Relevant equations work(J)= force(N)x Distance(m) 3. The attempt at a solution W=FD........221J=F(5.05)m I'm not sure how to start other than plug in the given variables with the equation I know. How would I get the combined mass?