One end of string of length `l` is connected to a particle on 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 toward centre) will be (`T` reprents the tension in the string):

Options

A. T
B. T - `mv^(2)`/l
C. T + `mv^(2)` / l
D. 0

Explanation

(i) T
The net force T on the particle is directed towards the centre . It provides the centripetal force required by the particle to move along a circle .