Answer to Question #74872 in Physics for Nan

Question

A sign breaks into 3 pieces which travel along the plane of the floor. The largest piece at 10kg goes down while the other two pieces go left and right. How can determine the speed of the largest piece?

Answer 1

All parts are on the floor. There is no initial momentum of the sign. Thus, two which pieces go left and right compensate the momentum of each other. Therefore, the momentum of largest piece (direction- downwards ) is zero. Thus, the speed of the largest piece is zero.