Verified Solution • 2025–26 Session moderate

QAIPMT-2010-Ph-2074: NEET 2010 Physics - Class 12 AIPMT-2010-Ph-2074 Solution: Two particles which are initially at rest move towards each…

Two particles which are initially at rest move towards each other under the action of their internal attraction. If their speeds are v and 2v at any instant then the speed of centre of mass of the system will be: 2v zero 1.5 v v

Multiple Choice Options

  • A 1Ze{1 \over {Ze}} Z e 1 _
  • B v 2
  • C 1m{1 \over m} m 1 _
  • D 1v4{1 \over {{v_4}}} v 4 _ 1 _

Step-by-Step Verified Solution

Kinetic energy of alpha nucleus is equall to electrostatic potential energy of the system of the alpha particle and the heavy nucleus. That is, 1 2 m v 2 = 1 4 � _ 0 _ ( Z e ) _ ( 2 e ) d i n _ d min _ 1 m

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