Final answer:
The Gravitational Potential Energy (GPE) of an 80 kg bungee jumper lifted 60 m in the air by a crane is 47040 Joules (J).
Step-by-step explanation:
The Gravitational Potential Energy (GPE) of an object can be calculated using the formula:
GPE = mass × gravitational field strength × height
Where:
- mass = 80 kg (mass of the bungee jumper)
- gravitational field strength = 9.8 m/s² (approximate value on the surface of the Earth)
- height = 60 m (height the bungee jumper is lifted by the crane)
Substituting these values into the formula:
GPE = 80 kg × 9.8 m/s² × 60 m = 47040 J
So, the gravitational potential energy of the bungee jumper before jumping is 47040 Joules (J).