NEET2017PhysicsWork, Power and EnergyActual
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)
Options
- AT
- BT + m v 2 l
- CT - m v 2 l
- DZero
Correct answer
A. T
Step-by-step solution
Centripetal force m v 2 l is provided by tension so the net force will be equal to tension i.e., T .