A single conservative force `F(x)` acts on a `1.0-kg` particle that moves along the x-axis. The potential energy `U(x)` is given by `U(x)=20+(x-2)^2` where x is in meters. At `x=5.0m`, the particle has a kinetic energy of `20J`.
What is the mechanical energy of a system?
A. zero
B. 20 J
C. 29 J
D. 49 J
What is the mechanical energy of a system?
A. zero
B. 20 J
C. 29 J
D. 49 J
Correct Answer – D