Select which of the following statements are True or False. Assume Newtonian Mec

Question

Select which of the following statements are True or False. Assume Newtonian Mechanics.
The work required to lift a mass one meter depends on the speed at which it is raised..
A particle's kinetic energy can change without having any net work done it.
The speed of an object is same in all inertial reference frames.
The power required to lift a mass does not depend on the speed at which the mass is raised.
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.
A simple machine cannot reduce the work required to do a task.

Help I've used four out of five tries and cant get it right :(

Explanation / Answer

The work required to lift a mass one meter depends on the speed at which it is raised.. True

A particle's kinetic energy can change without having any net work done it. False

The speed of an object is same in all inertial reference frames. - True

The power required to lift a mass does not depend on the speed at which the mass is raised. - False

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. True

A simple machine cannot reduce the work required to do a task. False

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