question_answer

A metallic chain of length 62.8 cm and whose ends are joined together is fitted on a wooden disc. The disc rotates with 60 revolutions per second. Find the tension in the chain if the chain has a mass 40 g (1 kg f = 9.8 N)

A) 2 kg f                           

B) 9.2 kg f

C) 1 kg f                           

D) None of these