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Systems of Particles and Rotational Motion — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsSystems of Particles and Rotational Motion1 Mark
MCQ
Two unequal masses are tied together with a cord with a compressed spring in between.
Which one is correct?
  • A
    Both masses will have equal KE.
  • B
    Lighter block will have greater KE.
  • C
    Heavier block will have greater KE.
  • D
    None of above answers is correct.
✓

Answer

  1. Lighter block will have greater KE.

Explanation:

Lighter block will have greater kinetic energy to lighter block will have higher velocity mass so Heavier block, hence by equation $\frac{1}{2}\text{mv}^2$, the lighter will have greater KE.

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