Question

на какой высоте потенциальная энергия груза массой 2т равна 10кДж?

Answer 1

Е=m*g*h

h=E/(m*g)

h=10000/(2000*10)=10000/20000=0.5 м

Answer 2

Из формулы потенциальной энергии En=mgh

h=En/mg

h=10.000/2000*9.8=10.000/19.600=0.5102м

Answer 3

Calculating the Height for Potential Energy

To calculate the height at which the potential energy of a 2-ton mass is equal to 10 kJ, we can use the formula for potential energy:

Potential Energy (PE) = mgh

Where: - m = mass (2 tons = 2000 kg) - g = acceleration due to gravity (approximately 9.81 m/s^2) - h = height

We can rearrange the formula to solve for height:

h = PE / (mg)

Substituting the given values: h = 10 kJ / (2000 kg * 9.81 m/s^2)

Let's calculate the height using these values.

Calculation

Using the given values, the calculation for the height is as follows: h = 10,000 J / (2000 kg * 9.81 m/s^2)

Calculating the height: h ≈ 0.51 meters

So, the potential energy of a 2-ton mass is equal to 10 kJ at a height of approximately 0.51 meters.

This information is based on the formula for potential energy and the given values for mass and potential energy