1. The problem statement, all variables and given/known data I am a student and have a question: For a small case study I have to determine the lateral and vertical impact loads during the installation of a object onto another object. This is done by a cranevessel, using its dedicated lifting crane. However, I am not familiar with this type of installation though. The case study is presented hereafter. A weight of approximately 65 tonnes is to be lowered with the crane onto the red marked object in a seastate of Hs = 0.5 m. During the lowering, the crane boom outreach is 21 m from its rotation centerline and located 40 m away from the vessel centre of motion with its boom tip at a height of 60 m above the centre of motion. How can I calculate the impact force as a result from lowering the object, weighing 65 tonnes, onto the stationary object (red object) which is fixed to the seabed. 2. Relevant equations F = m x a 3. The attempt at a solution m = 65 tonnes a = ? F = ?