Asked by Jack
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.
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.
Answers
Answered by
jon snow
Eg=Ep
mgh=1/2kx^2
plug in givens and solve for x
mgh=1/2kx^2
plug in givens and solve for x
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