An engineer is designing a spring to be placed at the bottom of an elevator shaft. If the elevator cable should happen to break at a height h above the top of the spring calculate the value that the spring constant k should have so that passengers undergo an acceleration of no more than 5.0g(5*9.8) when brought to rest. Let M be the total mass of the elevator and passengers.
______________________________________________
The answer behind the book is:
12Mg/h
I'm really stuck. I have over 2 hours with this problem. PLEASE help. THx in advance.
2007-03-20
09:12:19
·
3 answers
·
asked by
Anonymous
in
Science & Mathematics
➔ Physics