A person jumps in the air. When they reach their peak height, they are 0.65m off of the ground. The person as a mass of 83 kg. What is their gravitational potential energy?

Question

Quizplus · Accepted Answer

Potential Energy is the energy that is stored in some way. For example chemical bonds store energy. The energy due to their position in a gravitational field, i.e. are very high off the ground, is gravitational potential energy. The formula for gravitational potential energy is PE = mgh PE = potential energy (measured in Joules - J) m = mass (measure in kilograms - kg) g = gravitational acceleration (- 9.8 m/s²) h = height of the object (measured in meters - m) The mass of the person is 83kg The gravitational constant for Earth is 9.81 m/s² The height of the person is 0.65m PE = 83 kg x 9.81 m/s² x 0.65m = 529.24 J which is about 530 J

A Person Jumps in the Air