Question

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) is : (T is the tension in the string)

• A. T
• B. $T-\frac{mv^2}{l}$
• C. $T+\frac{mv^2}{l}$
• D. 0

Answer 1

Answer: (A)

T

Answer 2

The correct answer is (A) : T.