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

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics5.work,energy,power and collision1 Mark
MCQ
In an inelastic collision,
  • A
    the velocity of both the particles may be same after the collision
  • B
    kinetic energy is not conserved
  • C
    linear momentum of the system is conserved.
  • ✓
    All of the above
✓

Answer

Correct option: D.
All of the above
d
In case of perfectly inelastic collision,

Final velocities of both the body is same

But, when the collision is not perfectly inelastic the velocities differ.

Thus, the final velocity of the bodies may or may not be same.

Also, there is a loss of kinetic energy during an inelastic collision.

thus, kinetic energy is not conserved and velocity of separation will be less than

velocity of approach.

A collision, let it be elastic or inelastic has always its momentum conserved and

is given by,

$m_1 u_1+m_2 u_2=m_1 v_1+m_2 v_2$

Thus, linear momentum of the system is conserved

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