FrictionMedium
Question
A small mass slides down an inclined plane of inclination q with the horizontal. The co-efficient of friction is μ= μ0 x where x is the distance through which the mass slides down and μ0, a constant. Then the speed is maximum after the mass covers a distance of
Options
A.
B.
C.
D.
Solution
Acceleration of mass at distance x
a = g(sinθ − μ0 x cosθ)
Speed is maximum, when a = 0
g(sinθ − μ0 x cosθ) = 0
x =
a = g(sinθ − μ0 x cosθ)
Speed is maximum, when a = 0
g(sinθ − μ0 x cosθ) = 0
x =
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