A rock is dropped from the top of a building. Assuming air resistance is negligible, will...
A rock is dropped from the top of a building. Assuming air resistance is negligible, will the sum of kinetic energy plus potential energy be conserved? (Kinetic + Potential = Constant?) Why/why not?
Homework Answers
Mechanical energy (KE + PE) is constant in absence of external forces and here the external force of air resistance is negligible, hence, the sum will be constant.
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