Question

A bomb of mass m at rest explodes into two fragments of masses m1,m2 .The total energy released in the explosion is



e. If e1,e2 represent the energies carried by massess m1,m2 respectivly then

Answer 1

hope that helps you..........

Answer 2

Answer:

Explanation:

As per the question, the bomb explodes into two parts.

The masses of two parts are given as m₁ and m₂ respectively.

The momentum of two parts are given as  p₁ and p₂ respectively.

We are asked to calculate the kinetic energy.

The momentum of  a body is defined as the product of mass with velocity.

Mathematically momentum p = mv.

K.E. = 1/2 m v² = 1/2 m² v²/m = p²/2m

The kinetic energy of  a body moving with velocity v is calculated as

Hence, the kinetic energy of the first part K.E.₁ = p₁²/ 2 m₁

The kinetic energy of the second part K.E.₂ = p₂²/ 2 m₂

Hence, the total kinetic energy K.E = K.E.₁ + K.E.₂

Hence, the total kinetic energy K.E =  p₁²/ 2 m₁ +  p₂²/ 2 m₂