Question

two balls of mass 2kg and 3kg moving with the velocity of 3m/s and 5m/s respectively.After collusion the first ball moving with the velocity of 4m/s.Find the Velocity of second ball after collusion.​

Answer 1

Answer:

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Answer 2

Given :

Mass of first ball, m₁ = 2Kg

Mass of second ball, m₂ = 3Kg

Before collusion,

• Velocity of 1st ball, u₁ = 6m/s
• Velocity of 2nd ball, u₂ = 4m/s

After collision,

• Velocity of 1st ball, v₁ = 4m/s

To find :

Velocity of second ball after collusion.

Solution :

Using law of conservation of momentum that is Initial momentum is equal to final momentum. Momentum is measured as the product of mass and velocity.

Initial P = Final P

By substituting all the given values in the formula,

➛ m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

➛ (2)(6) + (3)(4) = (2)(4) + (3)v₂

➛ 12 - 12 = 8 + 3v₂

➛ 0 = 8 + 3v₂

➛ 3v₂ = 8

➛ v₂= 8/3

➛ v₂ = 2.6 m/s

Thus, the velocity of second ball after collusion. is 2.6m/s.

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