Physics, 27.06.2020 15:01 kidre96521
A car initially traveling at 27.7 m/s undergoes a constant negative acceleration of magnitude 2.00 m/s2 after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.340 m
Answers: 1
Physics, 23.06.2019 08:30
The center of a long frictionless rod is pivoted at the origin, and the rod is forced to rotate in a vertical plane with constant angular velocity \omega. write down the lagrangian for a bead of mass m threaded on the rod, using r as your generalized coordinate, where r, \phi are the polar coordinates of the bead. (notice that \phi is not an independent variable since it is fixed by the rotation of the rod tobe \phi = \omega * t) solve lagrange's equation for r(t). what happens if the bead is initially at rest at the origin? if it is released from any point ro > 0, show that r(t) eventually grows exponentially. explain your results in terms of the centrifugal force m* \omega ^2 *r.
Answers: 3
Physics, 23.06.2019 09:30
Newton's second law states that f = m x a (force is mass times acceleration). which example would have the greatest acceleration?
Answers: 1
Physics, 23.06.2019 11:00
Can any one me on number 4? i do know that it’s not a cause i gotten that wrong on the first try.
Answers: 1
A car initially traveling at 27.7 m/s undergoes a constant negative acceleration of magnitude 2.00 m...
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