JEE Main Physics question

PhysicsLaws of MotionJEE Main

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

Answer: (A)

Solution

Deceleration = μg. 0 = v − μg·t ⟹ t = v/(μg).

Question ID VK-152937