NEET Solved Paper 2017 Question 33
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)
Options:
A) Zero
B) T
C) $ T+\frac{mv^{2}}{l} $
D) $ T-\frac{mv^{2}}{l} $
Show Answer
Answer:
Correct Answer: B
Solution:
- Centripetal force $ ( \frac{mv^{2}}{l} ) $ is provided by tension so the net force will be equal to tension i.e., T.
