An object of mass m is attached to light string which passes through a hollow tube. The object is set into rotation in a horizontal circle of radius , 
If the string is pulled shortening the radius to 
,the ratio of new kinetic energy to the original kinetic energy is
a)
b)
c)
d)
An object of mass m is attached to light string which passes through a hollow tube. The object is set into rotation in a horizontal circle of radius , If the string is pulled shortening the radius to ,the ratio of new kinetic energy to the original kinetic energy is
a)
b)
c)
d)
Question ID - 51983 | SaraNextGen Top Answer
An object of mass m is attached to light string which passes through a hollow tube. The object is set into rotation in a horizontal circle of radius , If the string is pulled shortening the radius to ,the ratio of new kinetic energy to the original kinetic energy is
a)
b)
c)
d)
|
An object of mass m is attached to light string which passes through a hollow tube. The object is set into rotation in a horizontal circle of radius , |
|||||||
|
a) |
|
b) |
|
c) |
|
d) |
|
1 Answer
127 votes
Answer Key / Explanation : (a) -
|
(a) Kinetic energy
The ratio of new kinetic energy to the original KE is given
|
127 votes
Answer Link
127