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Grade: 12th pass
        
One end of a string of tha length is connector a particale of mass m and the other to a small peg on a smooth hojontaly table if the partical moves in a rest for one the particle diruted toward the centre is
 
one year ago

Answers : (1)

Arun
23755 Points
							
We know, 
When , a particle tied with sting and moves in circular , the required centripital force = tension in string 
Here length of string 'l ' is connected to a particle of mass m . after moving of string in a circle with speed v. 
Centripital force = mv²/l directed towards the centre . and tension in string is T 
Hence, net Force of string 
directed towards centre = centripital force = Tension in string
e.g T = mv²/l
hence , correct alternative is T
one year ago
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