Question

What is the potential energy of an airplane with a mass of 2 tons equal to 1 km at the beginning of the flight compared to the runway? Plz helpppp

Answer 1

Ответ:

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Answer 2

Alright, let's break it down. The potential energy (PE) of an object is given by the formula PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height.

First, convert the mass of the airplane from tons to kilograms. Since 1 ton = 1000 kg, a 2-ton airplane is 2000 kg.

Now, the height (h) is given as 1 km. However, for potential energy calculations, we usually take the height relative to a reference point. In this case, let's consider the reference point to be the runway. So, the height (h) would be 0 at the beginning of the flight.

Now, plug in the values:

m = 2000 kg g = 9.8 m/s² (approximate acceleration due to gravity on Earth) h = 0 m (height above the reference point)

PE = 2000 kg * 9.8 m/s² * 0 m = 0 J

The potential energy at the beginning of the flight, relative to the runway, is 0 Joules. If you have any more questions or need further clarification, feel free to ask!