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Answer:
1.PE= 1,176,000J
2.h= 2m
3.m= 3kg
thats the missing givens
Verified answer
PE = mgh
1. Given
10,000 kg water
12 meters above the ground
9.8 m/s^2 gravitational acceleration
PE = ?
Solution:
PE = mgh
PE = 10,000 kg(9.8 m/s^2)(12 meters)
PE = 1,176,000 J
2. Given
1.5 kg mass of book
29.4 J Potential Energy
9.8 m/s^2 gravitational acceleration
Height = ?
Solution:
PE = mgh
Formula transformation
PE = mgh
h = PE/mg
h = 29.4 J/(1.5 kg)(9.8 m/s^2)
h = 29.4 J/14.7kgm/s^2
h = 2 meters
3. Given
1.5 m high table
44.1 J Potential Energy
9.8 m/s^2 gravitational acceleration
mass of basket of fruits = ?
Solution:
PE = mgh
Formula transformation
PE = mgh
m = PE/gh
m = 44.1 J/(1.5 m)(9.8 m/s^2)
m = 44.1 J/14.7m^2/s^2
m = 3 kg
Answers:
1. PE = 1,176,000 J
2. h = 2 meters
3. m = 3 kg