How much energy does it take to move 1 kg 1 meter per second?

Answer 1

If a body is moving at a constant speed, without friction, it does not absorb any energy, because it does not require any force to continue in a straight line. This follows from Newton's first law of motion. If there is friction or wind resistance, this does require a force to overcome it, but you haven't given any data to enable me to calculate this.

On the other hand, the definition of the force called the Newton in the SI system is that a force of 1 Newton will accelerate a mass of 1 Kg at a rate of 1 meter/sec2. I assume you know the difference between velocity and acceleration. If a body is accelerating it does need a force to do this, and energy or work is Force x Distance, the units being Joules, ie 1 Joule = 1 Newton x 1 meter. So in the above case, of a force of 1 Newton acting on a body and causing it to accelerate, the work done for every meter travelled is 1 Joule.

Answer 2

Power = energy change / time

Take g = 10 m/s/s

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change in (potential) energy = mgh = 100 * 10 * 3 = 3000 joules

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Power = energy change / time

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= 3000 / 2

= 1500 watts

Answer 3

The energy required to move 1 kg at a speed of 1 m/s is equivalent to the object's kinetic energy, which is calculated using the formula KE = 0.5 * m * v^2. Plugging in the values, we get KE = 0.5 * 1 kg * (1 m/s)^2, which equals 0.5 Joules.

Answer 4

force = mass × acceleration

Energy = force × distance

≈ 1 kg × 9.81 m/s² × 1 m

= 9.81 Joules.