Not at all, “sketchy physics” is an extension for sketchup that integrates a physics engine (…obviously!) that you can use to animate stuff and make joints and similar things. Now he wants to record these movements as an animation and use them in UE4.
There might be a way, but I don’t think that there is currently, and there are no plugins that I am aware of that import physics associated with third party tools. Not sure if the SDK includes physics either, unfortunately - it only makes mention of importing and exporting to Sketchup.