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Olympiad workbookNSEPRotational Motion

A ball of mass m₁ travels horizontally along the x -axis in the positive direction with an initial speed of v ₀ . It collides with another ball of mass m ₂ that is originally at rest. After the collision, the ball of mass m₁ has velocity (v_ 1 x i +v_ 1 y j ) and the ball of mass m₂ has velocity (v_ 2 x i +v_ 2 y j ) . Identify the correct relationship(s)

Options

  1. A0= m ₁ v _ 1 x + m ₂ v _ 2 x
  2. Bm₁ v₀=m₁ v_ 1 y +m₂ v_ 2 y
  3. C0= m ₁ v _ 1 y + m ₂ v _ 2 y
  4. Dm ₁ v ₀= m ₁ v _ 1 x + m ₂ v _ 2 x

Correct answer

D. m ₁ v ₀= m ₁ v _ 1 x + m ₂ v _ 2 x

Step-by-step solution

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