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

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 5. work,energy,power and collision4 Marks
MCQ
$A$ spring block system is placed on a rough horizontal floor. The block is pulled towards right to give spring an elongation less than $\frac{{2\mu mg}}{K}$ but more than $\frac{{\mu mg}}{K}$ and released.The correct statement is
  • A
    The block will cross the mean position.
  • B
    The block will come to rest when the forces acting on it are exactly balanced
  • ✓
    The block will come to rest when the work done by friction becomes equal to the change in energy stored in spring.
  • D
    None
✓

Answer

Correct option: C.
The block will come to rest when the work done by friction becomes equal to the change in energy stored in spring.
c

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