A cart is loaded with a brick and pulled at constant speed along an inclined plane to the height of a seat-top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, then what is the potential energy of the loaded cart at the height of the seat-top?
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Explanation:
Total mechanical energy is consists of two energies: kinetic energy and potential energy. The kinetic energy is the energy due to the motion, whereas the potential energy is due to the position. The kinetic energy is given by the following formula:
pe,=Mgh
pE= (3kg)x(9.8m/s) x(0.45)
therefore,PE= 13.23J
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