1. The problem statement, all variables and given/known data 1 Kg block slides on a circular rod (no friction) from rest in A position by a force of 40N. What is the speed when it reached point B. (see attached pic) 2. Relevant equations W(f)=E(B)-E(A) 3. The attempt at a solution The energy in A is 0, the energy in B is mgh+0.5mv^2 My problem is how to find the work of the force. Thx.