Eg=Ep
mgh=1/2kx^2
plug in givens and solve for x
An ore car of mass 44000 kg starts from rest
and rolls downhill on tracks from a mine. At
the end of the tracks, 26 m lower vertically, is
a horizontally situated spring with constant
4.5 × 105 N/m.
The acceleration of gravity is 9.8 m/s
2
.
Ignore friction.
How much is the spring compressed in stopping
the ore car?
Answer in units of m.
1 answer
1 answer