The spool shown in the figure is placed on a rough horizontal surface and has inner radius and outer radius
. The angle
between the applied force and the horizontal can be varied. The critical angle (
for which the spool does not roll and remains stationary is given by
a) |
|
b) |
|
c) |
|
d) |
|
The spool shown in the figure is placed on a rough horizontal surface and has inner radius and outer radius
. The angle
between the applied force and the horizontal can be varied. The critical angle (
for which the spool does not roll and remains stationary is given by
a) |
|
b) |
|
c) |
|
d) |
|
(a)
If the spool is not to translate,
…(i)
If the spool is not to rotate,
…(ii)
or
or
Also the line of action of should pass through the bottom most point