One end of string of length l is connected to a particle of mass 'm' and the other end is connected to a small peg on a smooth horizontal table. If the particle moves in circle with speed ‘v’, the net force on the particle (directed towards centre) will be (T represents the tension in the string)

• A

  $T+\frac{m{v}^2}{l}$

• B

  $T-\frac{m{v}^2}{l}$

• C

  zero

• D

  T