45. If us, uk and ur be the coefficient of static ,
kinetic and rolling friction respectively then
a) us>uksur
b) us<ukur
c) uş <uk>ur
d) us>ukur
(a)
(b)
(C)
(d)
Answers
Answered by
1
Answer:
μr <μ k <μ s
which implies that the rolling friction is least because of the wheel and rotating effect and the kinetic friction is in middle of the series because of its moving properties & static friction is highest because of the limiting moving properties.
Answered by
0
Answer:
ur < uk < us
Explanation:
The surface irregularities between two different surfaces makes it harder to overcome it initially, but once the interlocking is broken, its easier to slide the surfaces. Rolling friction has very small values.
Similar questions