Question:

4.A wheel turning with angular speed of 30 rev/s, is brought to rest with a constant acceleration. It turns 60 rev before it stops the time that elapses before it stops is

Options :

  • a) 2s
  • b) 4s
  • c) 5s
  • d) 6s

Answer :

b) 4s

Answer Steps :

Step1 :-

Step2 :-

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