A particle moves on a rough horizontal ground with some initial velocity v_ 0 . If 3 4 th…

Physics · JEE Main · NTA ExamsWork, Energy and Power

A particle moves on a rough horizontal ground with some initial velocity \(v_{0}\). If \(\frac{3}{4}\)th of its K.E. is lost in friction in time t0, the coefficient of friction between the particle and the ground is
  1. \(\frac{v_{0}}{2 g t_{0}}\)
  2. \(\frac{v_{0}}{4 g t_{0}}\)
  3. \(\frac{3 v_{0}}{4 g t_{0}}\)
  4. \(\frac{v_{0}}{g t_{0}}\)

Answer

(A) v_ 0 2 g t_ 0

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