Two objects were lifted by a machine. One object had a mass of 2 kilograms and was lifted at a speed of 2m/sec. the other had a mass of 4 kilograms and was lifted at a rate of 3m/sec.

Sadly, after giving all the necessary data, you forgot to ask the question.

Here are some general considerations that jump out when we play with

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For the first object:

The object's weight is (mass) x (gravity) = 2 x 9.8 = 19.6 newtons

The force needed to lift it at a steady speed is 19.6 newtons.

The potential energy it gains every time it rises 1 meter is 19.6 joules.

If it's rising at 2 meters per second, then it's gaining 39.2 joules of

potential energy per second.

The machine that's lifting it is providing 39.2 watts of lifting power.

The object's kinetic energy is 1/2 (mass) (speed) ² = 1/2 (2) (4) = 4 joules.

For the second object:

The object's weight is (mass) x (gravity) = 4 x 9.8 = 39.2 newtons

The force needed to lift it at a steady speed is 39.2 newtons.

The potential energy it gains every time it rises 1 meter is 39.2 joules.

If it's rising at 3 meters per second, then it's gaining 117.6 joules of

potential energy per second.

The machine that's lifting it is providing 117.6 watts of lifting power.

The object's kinetic energy is 1/2 (mass) (speed) ² = 1/2 (4) (9) = 18 joules.

If you go back and find out what the question is, there's a good chance that

you might find the answer here, or something that can lead you to it.