An explosion breaks a rock into three parts i horizontal

Last updated: 6/2/2023

An explosion breaks a rock into three parts i horizontal plane Two of them go off at right ang to each other the first part of mass 1 kg mo with a speed of 12 ms 1 and the second par mass 2 kg moves with 8 ms 1 speed If the th part flies off with 4 ms 1 speed then its mass NEET 20 1 5 kg 3 17 kg 2 7 kg 4 3 kg