SATHEE: Kinematics Question 743

Kinematics Question 743

Question: A stone of mass of 16 kg is attached to a string 144 m long and it’s whirled in a horizontal circle. The maximum tension the string can withstand it’s 16 Newton. The maximum velocity of revolution that can be given to the stone without breaking it, will be [SCRA 1994]

Options:

A) 20 $m s^{- 1}$

B)16 $m s^{- 1}$

C) 14 $m s^{- 1}$

D)12 $m s^{- 1}$

Show Answer

Answer:

Correct Answer: D

Solution:

Maximum tension = $\frac{m v^{2}}{r} = 16 N$

therefore $\frac{16 \times v^{2}}{144} = 16$

therefore v = 12 m/s

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Kinematics Question 743

Question: A stone of mass of 16 kg is attached to a string 144 m long and it’s whirled in a horizontal circle. The maximum tension the string can withstand it’s 16 Newton. The maximum velocity of revolution that can be given to the stone without breaking it, will be [SCRA 1994]

Options:

Answer:

Solution:

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