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Laws of Motion — Physics STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 SciencePhysicsLaws of Motion2 Marks
Question
Write a note on elastic collision.
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Answer

  1. Collision between two bodies in which kinetic energy of the entire system is conserved along with the linear momentum is called as elastic collision.
  2. In an elastic collision,
    $m _1 \overrightarrow{ u _1}+ m _2 \overrightarrow{ u _2}= m _1 \overrightarrow{ v _1}+ m _2 \overrightarrow{ v }_2$
  3. In an elastic collision,
    $\sum K \cdot E _{\text {rinitial }}=\sum K \cdot E _{\text {. final }}$
  4. An elastic collision is impossible in daily life.
  5. However, in many situations, the interatomic and intermolecular collisions are considered to be elastic.

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