AIPMT PRELIMS2007Physics-Mechanics
AIPMT PRELIMS 2007 Physics Friction MCQ Question
Type: MCQ-conceptual-Medium-Class 11
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
A
gμ/V
B
g/V
C
V/g
D
V/(gμ)
Correct Answer
Option D
Detailed Explanation
The deceleration due to friction is a = μg. The time to stop is t = V/a = V/(μg).
Found an issue with this question?