Particle of mass 4 which is at rest explodes into three fragments. Two of the fragments each of mass are found to move with a speed each in mutually perpendicular directions. Calculate the energy released in the process of explosion. |
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3 |

Particle of mass 4 which is at rest explodes into three fragments. Two of the fragments each of mass are found to move with a speed each in mutually perpendicular directions. Calculate the energy released in the process of explosion. |
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a) |
b) |
c) |
d) |
3 |

1 Answer

127 votes

**(b)**

Here initial momentum . Since no external force exists, hence momentum must remain conserved ,

As two fragments of mass mass each are moving with speed each at right angles,

.

The mass of third fragment is 2 m.

Kinetic energies of three fragments are

And

Total kinetic energy released during explosion

127 votes

127