A freight train consists of two 85000.0 kg engines and 45 cars with average masses of 65000.0 kg per car. Note: You must enter units along with your numerical answer to receive credit for this problem. What force must each engine exert backward on the track to accelerate the train at a rate of 0.06 m/s² if the force of friction is 550000.0 N, assuming the engines exert identical forces? This is not a large frictional force for such a massive system. Rolling friction for trains is small, and consequently trains are very energy-efficient transportation systems.
A freight train consists of two 85000.0 kg engines and 45 cars with average masses of 65000.0 kg per car. Note: You must enter units along with your numerical answer to receive credit for this problem. What force must each engine exert backward on the track to accelerate the train at a rate of 0.06 m/s² if the force of friction is 550000.0 N, assuming the engines exert identical forces? This is not a large frictional force for such a massive system. Rolling friction for trains is small, and consequently trains are very energy-efficient transportation systems.
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Transcribed Image Text:A freight train consists of two
85000.0 kg engines and 45 cars with
average masses of 65000.0 kg per
car. Note: You must enter units along
with your numerical answer to receive
credit for this problem.
What force must each engine exert
backward on the track to accelerate the
train at a rate of 0.06 m/s² if the force of
friction is 550000.0 N, assuming the
engines exert identical forces? This is
not a large frictional force for such
a massive system. Rolling friction for
trains is small, and consequently trains
are very energy-efficient
transportation systems.
Example of Units: 300,000,000 m/s =
3.00E8*m/s and for acceleration
9.806*m/s^2.
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