1.

The total mass of an elevator, with a 80 kg man in it, is 1000 kg. This elevator moving upward with a speed of 8 m/s is brought to rest over a distance 16 m. Then tension T in the cable supporting elevator is

A.  3200 N          
B.         5400 N
C.  6500 N          
D.         7800 N  
Answer» E.


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