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5.work,energy,power and collision — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics5.work,energy,power and collision1 Mark
MCQ
Internal forces acting within a system of particles can alter
  • A
    The linear momentum as well as the kinetic energy of the system
  • B
    The linear momentum of the system, but not the kinetic energy of the system
  • ✓
    The kinetic energy of the system, but not the linear momentum of the system
  • D
    Neither linear momentum nor kinetic energy of the system
✓

Answer

Correct option: C.
The kinetic energy of the system, but not the linear momentum of the system
c
(c)

The kinetic energy of the system, but not the linear momentum of the system as $F_{\text {ext }}=0$. So momentum will be conserved

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