Question

Coefficient
static friction blu
coin and
gramophone dise
is 0.5. Radius
the disc is
8cm . Initially the centre of the
coin T cm away from
the
centre
diske. At
what
minimum
will it
start slipping
from there
what
By
will the
answer
change
if the coin is
almost at the rim ?
of
of the
frequency
A
factor​

Answer 1

Explanation:

Coefficient of static friction between

a coin and a gramophone disc is 0.5.

Radius of the disc is 8 cm. Initially the

centre of the coin is 2 cm away from

the centre of the disc. At what minimum

frequency will it start slipping from there ? by what factor will answer Change if the coin is almost at the rim ( use g= π^2)