A disc of circumference 
is at rest at a point 
on a horizontal surface when a constant horizontal force begins to act on its centre. Between 
and 
there is sufficient friction to prevent slipping and the surface is smooth to the right of
. The disc moves from 
to 
in time
. To the right of 
,
a)
The angular acceleration of the disc will disappear, linear acceleration will remain unchanged
b)
Linear acceleration of the disc will increase
c)
The disc will make one rotation in time 
d)
The disc will cover a distance greater than 
in further time 
A disc of circumference is at rest at a point on a horizontal surface when a constant horizontal force begins to act on its centre. Between and there is sufficient friction to prevent slipping and the surface is smooth to the right of . The disc moves from to in time . To the right of ,
a)
The angular acceleration of the disc will disappear, linear acceleration will remain unchanged
b)
Linear acceleration of the disc will increase
c)
The disc will make one rotation in time
d)
The disc will cover a distance greater than in further time
Question ID - 100668 | SaraNextGen Top Answer
A disc of circumference is at rest at a point on a horizontal surface when a constant horizontal force begins to act on its centre. Between and there is sufficient friction to prevent slipping and the surface is smooth to the right of . The disc moves from to in time . To the right of ,
a)
The angular acceleration of the disc will disappear, linear acceleration will remain unchanged
b)
Linear acceleration of the disc will increase
c)
The disc will make one rotation in time
d)
The disc will cover a distance greater than in further time
|
A disc of circumference |
|
|
a) |
The angular acceleration of the disc will disappear, linear acceleration will remain unchanged |
|
b) |
Linear acceleration of the disc will increase |
|
c) |
The disc will make one rotation in time |
|
d) |
The disc will cover a distance greater than |
(b,c,d)
Let 
external force, 
force of friction between 
and 
=acceleration between 
and 
,
= acceleration beyond 
Let 
angular acceleration between 
and 
For one rotation, 
= time of travel from 
to
Angular velocity at 
For one rotation to the right of 
