Question

a body of mass 5 kg at rest explodes into three pieces two pieces of each mass 1 kg fly of perpendicular to each other with a speed of hundred metre per second calculate the velocity of the third piece also calculate the ratio of kinetic energy of the third piece
and one of the small pieces​

Answer 1

Answer:

In this explosion, the parts go in 2 dimensions, so we need to consider both x and y axis.

Please refer to the attached photo,

Hope you will be able to understand the method for the answer.

Apply momentum conservation along both x and y axis.

Here v3 represents the velocity of 3 kg mass