The radius of a rotating disc is suddenly reduced to half without any change in its mass. Then its angular velocity will be
a)
Four times
b)
Double
c)
Half
d)
Unchanged
The radius of a rotating disc is suddenly reduced to half without any change in its mass. Then its angular velocity will be
a)
Four times
b)
Double
c)
Half
d)
Unchanged
Question ID - 53823 | SaraNextGen Top Answer
The radius of a rotating disc is suddenly reduced to half without any change in its mass. Then its angular velocity will be
a)
Four times
b)
Double
c)
Half
d)
Unchanged
|
The radius of a rotating disc is suddenly reduced to half without any change in its mass. Then its angular velocity will be |
|||||||
|
a) |
Four times |
b) |
Double |
c) |
Half |
d) |
Unchanged |
1 Answer
127 votes
Answer Key / Explanation : (a) -
|
(a)
If radius is reduced to half then angular velocity will be four times |
constant 
[If 
constant]127 votes
Answer Link
127