Verified Solution • 2025–26 Session moderate

QAIPMT-2007-Ph-2371: NEET 2007 Physics - Class 11 AIPMT-2007-Ph-2371 Solution: A block B is pushed momentarily along a horizontal surface with …

A block B is pushed momentarily along a horizontal surface with an initial velocity V. If μ\mu is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

Multiple Choice Options

  • A gμ/Vg\mu/V
  • B g/Vg/V
  • C V/gV/g
  • D V/(gμ)V/(g\mu).

Step-by-Step Verified Solution

Given u = V, final velocity = 0. Using v = u + at _ 0 = V _ a t _ _ a = 0 _ V t = _ V t f = _ R = _ mg (f is the force of friction) _ Retardation, a = _ g So, t = V a = V _ g

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