Answer:
2.1J
Explanation:
Given parameters:
Mass of pendulum = 0.7kg
Height of pendulum = 0.3m
Acceleration due to gravity = 9.8m/s²
Unknown:
Potential energy of the pendulum = ?
Solution:
The potential energy of a body is the energy due to the position of that body;
Potential energy = mass x acceleration due to gravity x height
Insert the parameters and solve;
Potential energy =0.7kg x 0.3m x 9.8m/s²
Potential energy = 2.1J
