Energy can be lost in several places during Lenore's action of pushing the box up the inclined plane. The most relevant options where energy loss due to friction can occur include:
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Friction between the truck and the inclined plane. - This would create resistance as the box moves into the truck.
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Friction between Lenore’s hands and the box. - If there is friction here, energy could be lost as Lenore pushes the box.
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Friction between Lenore and the ground. - If Lenore is pushing with her feet on the ground, there could be energy loss due to friction.
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Friction between the box and the inclined plane. - This is a direct interaction where friction would cause energy loss as the box moves up the plane.
While all of these are valid, the most significant loss occurs between the box and the inclined plane as well as between the truck and the inclined plane, since they directly affect the motion of the box during the push. Therefore, the best answer would likely be:
Friction between the box and the inclined plane.
However, any of the mentioned frictions can lead to energy losses in the system.
1 answer