# free_falling_body.mbd begin: data; problem: initial value; end: data; begin: initial value; initial time: 0.; final time: 1.; time step: 1.e-3; max iterations: 10; tolerance: 1.e-6; end: initial value; begin: control data; structural nodes: 1; rigid bodies: 1; gravity; end: control data; begin: nodes; structural: 1, dynamic, null, eye, 0., 3., 0., null; end: nodes; begin: elements; body: 1, 1, 1., null, eye; gravity: 0., 0., -1., const, 9.81; end: elements;