| {"correct_letter": "A", "correct_formula": "m_1\u00b7v_1i + m_2\u00b7v_2i = m_1\u00b7v_1f + m_2\u00b7v_2f", "annotation": "Environment: g=-9.81, F_drag=0.0\nGround: mu_s=0.0, mu_k=0.0\nStainlessSteelCube1: a = 2.0, e = 1.0, m = 63200.0, v_0 = 1.5\nGlassCube: a = 2.0, e = 1.0, m = 20000.0, v_0 = -0.6", "choices": ["m_1\u00b7v_1i + m_2\u00b7v_2i = m_1\u00b7v_1f + m_2\u00b7v_2f", "v_1f = v_1i \u00b7 e^(-m_2/m_1) + v_2i\u00b7(1 - e^(-m_2/m_1))", "v_2f - v_1f = e\u00b7(v_1i - v_2i)", "L = I\u00b7\u03c9"], "correct_index": 0, "physics_type": "PerfectlyElasticCollision", "seed": "PerfectlyElasticCollision|benchmark/perfectly_elastic_collision/3"} |