College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

Exercise 81

An explosion of a 10.0-kg bomb releases only two separate pieces. The bomb was initially at rest and a 4.00-kg piece travels westward at 100 m/s immediately after the explosion. (a) What are the speed and direction of the other piece immediately after the explosion (b) How much kinetic energy was released in this explosion