Two smooth objects with a coefficient of restitution $e,$ collide directly and bounce as shown. Newton's law of restitution gives

826-919

  • A

    $e \times 4u = v_2 + v_1$

  • B

    $e \times 2u = v_1 + v_2$

  • C

    $e \times 2u = v_2 - v_1$

  • D

    it cannot be applied as the masses are not known

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