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A BODY OF MASS m 0 IS PLACED ON A SMOOTH HORIZONTAL SURFACE. THE MASS OF THE BODY DECREASES EXPONENTIALLY WITH DISINTEGRATION CONSTANT ASSUMING THAT THE MASS IS EJECTED BACKWARDS WITH A RELATIVE VELOCITY u . FIND THE VELOCITY OF IT AFTER TIME t. ANS: u t


A BODY OF MASS m0 IS PLACED
 
ON A SMOOTH HORIZONTAL
 
SURFACE. THE MASS OF THE
 
BODY DECREASES
 
EXPONENTIALLY WITH
 
DISINTEGRATION CONSTANT    
 
ASSUMING THAT THE MASS IS
 
EJECTED BACKWARDS WITH A
 
RELATIVE VELOCITY u . FIND
 
THE VELOCITY OF IT AFTER
 
TIME t.
 
 
ANS:    ut


Grade:10

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