The barricade at the end of a subway line has a large spring designed to compress...
The barricade at the end of a subway line has a large spring designed to compress 2.00 m when stopping a 1.10 ? 105 kg train moving at 0.500 m/s.
(a) What is the force constant of the spring?
N/m
(b) What speed would the train be going if it only compressed the
spring 0.500 m?
m/s
(c) What force does the spring exert when compressed 0.500 m?
N (in the direction opposite to the train's motion)
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