One end of a string of length l is connected to a particle of mass m and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed v the net force on the particle (directed towards the centre. (i) T, (ii) T - (m υ² / l) (iii) T + (m υ² / l) (iv) 0 T is the tension in the string. [Choose the correct alternative].

One end of a string of length l is connected to a particle of mass m a

1.	One end of a string of length l is connected to a particle of mass m and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed v the net force on the particle (directed towards the centre. (i) T, (ii) T - (m υ² / l) (iii) T + (m υ² / l) (iv) 0 T is the tension in the string. [Choose the correct alternative].
Answer» One end of a string of length l is connected to a particle of mass m and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed v the net force on the particle (directed towards the centre. (i) T, (ii) T - (m υ² / l) (iii) T + (m υ² / l) (iv) 0 T is the tension in the string. [Choose the correct alternative].

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