a freight train is accelerating on a level track. the tension in the coupling between the last two freight cars would change if some of the cargo in the last car were transfered to other cars. false a freight train is accelerating on a level track. the tension in the coupling between the engine and the first freight car would change if some of the cargo in the last car were transfered to other cars. true astronauts orbiting the earth feel weightless because the gravitational attraction of the earth is so much less at their orbiting altitude. false suppose that the coefficients of static and kinetic friction have values such that for a crate in contact with a concrete floor. this means that the magnitude of the static frictional force acting on the crate at rest is always twice the magnitude of the kinetic frictional force acting on the moving crate