Velocity of cart Velocity of Velocity of Velocity of 1 before cart 2 before cart 1 after cart 2 after Cart 1 Cart 2 collision collision collision collision mass mass Ext (m/s) (m/'s) (m/'s) (m/s) (kg) (kg) 1 0 0 2b 0 2c 0 Data Table B: Momentum Momentum Momentum Momentum Total Total of cart 1 of cart 2 of cart 1 of cart 2 momentum momentum Ratio of before before after after before after total collision collision collision collision collision collision momentum after/before Ext. (kog .m/=) (kog .m/s) (kg .m/=) (kog.m/=) (kog. m/s) (kg.m/s) 1 0 0 2b 0 2c 0 Data Table C: KE of KE of KE of KE of cart 1 cart 2 cart 1 cart 2 Total KE Total KE Ratio of before before after after before after collision collision collision collision collision collision total KE Ext. (J) (J) (J) after/before 1 0 2a 0