Answer:
490000J
Explanation:
Given parameters:
Mass of boulder = 1000kg
Height of cliff = 50m
Acceleration due to gravity = 9.8m/s²
Unknown:
Potential energy = ?
Solution:
Potential energy is due to the position of a body. It is expressed as;
P.E = mgH
m is the mass
g is the acceleration due gravity
H is the height
Now insert the parameters and solve;
P.E = 1000 x 9.8 x 50 = 490000J
Data:
m = 1000 kg
h = 50 m
g = 9.8 m/s^2
Find:
P.E = ?
Formula:
P.E = mgh
Solution:
P.E = mgh
P.E = (1000)*(9.8)*(50)
P.E = 490000 J
Result:
P.E = 490000 Joule
___________________ is compared to the number of boulders rolling down the hill and is measured in ______________.
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