Problemas
8/20 There is a bell at the top of đ tower that is 45 m high . The bell weighs 100 kg . What is the potential energy of the bell? 4,500 J 980J 441 J 44.10 o J
Roztwór
Simón
professionell · Tutor durante 6 años
4.1
(171 Votos)
Respuesta
The potential energy of the bell is 441,000 J.
Explicación
## Step 1The potential energy (PE) of an object can be calculated using the formula:### **PE = mgh**where:-
is the mass of the object (in kilograms),-
is the acceleration due to gravity (approximately 9.8 m/s² on Earth),-
is the height above the ground (in meters).## Step 2In this problem, the mass of the bell (
) is 100 kg, the acceleration due to gravity (
) is 9.8 m/s², and the height (
) is 45 m.## Step 3Substitute these values into the formula to calculate the potential energy:### **PE = 100 kg * 9.8 m/s² * 45 m**