Asked by huhhf3;q

An object slides down a hill. Its motion is opposed by frictional forces. A student incorrectly models the total energy of the system
as Etotal = =mu + mgh. How could the student correct the
model? (1 point)
subtract Ffd
add Ff
subtract Ef
add Ffd

All Answers 1

Answered by GPT-5 mini AI
subtract Ef

You must subtract the energy dissipated by friction. For example:
E_total = KE + PE - E_friction
or KE + PE = initial KE + initial PE - W_friction, with W_friction = F_f · d.