Question

two bodies of masses m1 and m2 are moving with velocities V1 and V2 respectively in the same direction laid with each other elastically calculate their velocities after the collision discuss what happens when first but the coding bodies are having the same mass second one of the bodies example m2 is at rest​

Answer 1

Answer:

given = 2 bodies

            mass (m1)  and mass(m2 )

             velocities = V1 and V2

            initial velocities u₁ and u₂

to find = what happens when first but the coding bodies are having the same mass second one of the bodies example m2 is at rest​

solution  =  apply the law of momentum conservation

              ⇒m₁v₁² + m₂v₂² = m₁v₁ + m₂v₂.........................(1)

              ⇒ 1/2m₂v₂²- 1/2m₂v₂² = 1/2m₁v₁² - 1/2m₁v₁²

           now , from the 1st equation,

               ⇒ 1/2(u₂ + v₂) ₓ m₁(v₁-u₁) = 1/2m₁(u₁²-v₁²)

               ⇒  u₂ + v₂=  -u₁ - v₁

               ⇒   u₁ + v₁ + u₂ + v₂ = 0

               

Answer 2

Answer:

Look at the attached image

hope this helps