Question

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 center) will be (T represents the tension in the string)

• A. $T$
• B. $T+\frac {mv^2}{l}$
• C. $T-\frac {mv^2}{l}$
• D. Zero

Answer 1

Answer: (A)

$T$

Answer 2

The correct option is (A): $T$.