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A fire man has to carry an injured perso...

A fire man has to carry an injured person of mass 40 kg from the top of a building with the help of the rope which can withstand a load of 100 kg. The acceleration of the fireman if his mass is 80 kg, will be-

A

`8.17 m//s^(2)`

B

`9.8 m//s^(2)`

C

`1.63 m//s^(2)`

D

`17.97 m//s^(2)`

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