Select which of the following statements are true. Assume Newtonian Mechanics (n

Question

Select which of the following statements are true. Assume Newtonian Mechanics (non-relativistic.)


A) Net work can be done on an object without changing it's kinetic energy.
B) The kinetic energy of an object is same in all inertial reference frames.
C) The work done by a constant force acting on an object is equal to the magnitude of the force times the distance the object moves.
D) The power required to lift a mass does not depend on the speed at which the mass is raised.
E) A simple machine cannot reduce the work required to do a task
F) The work required to lift a mass one meter depends on the speed at which it is raised.

Explanation / Answer

C) The work done by a constant force acting on an object is equal to the magnitude of the force times the distance the object moves. E) A simple machine cannot reduce the work required to do a task

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