NEET 2017 Physics question
One end of string of length is connected to a particle of mass '' and the other end is connected to a small peg on a smooth horizontal table. If the particle moves in circle with speed '', the net force on the particle (directed towards center) will be ( represents the tension in the string)
Answer: (1)
Solution
On the smooth horizontal table the only horizontal force on the particle is the tension of the string, directed towards the centre (peg). Gravity and the normal reaction cancel in the vertical direction. This tension itself supplies the centripetal
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