Answer: 1,631J
Explanation:
Potential energy is the energy possessed by a body by virtue of its position. It is an example of mechanical energy.
Mathematically, P.E = mass×acceleration due to gravity×height
Since Force = mass×acceleration = 466N
Height = 3.5m
Substituting this values in the formula, we have;
P.E = 466 × 3.5
P.E = 1631Joules
Mary's change in potential energy is therefore 1,631Joules
