How does the potential energy of a person weighing 50 kilograms change when ascending
How does the potential energy of a person weighing 50 kilograms change when ascending in a balloon to a height of 100 meters.
Given:
m = 50 kilograms – the mass of a person;
h = 100 meters – the height to which the person climbed in the balloon;
g = 10 Newton / kilogram – acceleration of gravity (approximate value).
It is required to determine E (sweat) – how the potential energy of a person will change when he rises to a height h.
At the surface of the earth, the potential energy of a person is zero. Then, to determine the change in potential energy, you must use the following formula:
E (sweat) = m * g * h;
E (pot) = 50 * 100 * 10 = 500 * 100 = 50,000 Joules (50 kJ).
Answer: when a person rises to a height of 100 meters, his potential energy will change by 50,000 Joules (50 kJ).