Assume the car is coasting up the incline.
At the bottom of the incline, the KE is
at its' max value; and PE is zero.
KE + PE = Constant.
At bottom of incline, assume KE = 20 J.,
PE = 0.
KE + PE = 20 + 0 = 20 J.
Half-way up the incline, KE = 10 J. and
PE = 20-10 = 10 J.
KE + PE = 10 + 10 = 20 J.
If the car stops at the top of the incline, KE = 0 and PE = 20 J.
KE + PE = 0 + 20 = 20 J.
When a car moves up an incline, does the kinetic energy and potential energy decrease or increase?
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