A $$$1-\mathrm{kg}$$$ object is released from rest at the top of a rough-surfaced incline. The object slides with- out rotating to the bottom of the incline. The object's kinetic energy at the bottom must be

Equal to the block's gravitational potential energy when it was released, because total mechanical energy must be conserved.

Equal to the block's gravitational potential energy when it was released, because the gain in kinetic energy compensates for the mechanical energy lost to thermal energy on the rough incline.

Less than the block's gravitational potential energy when it was released, because the gravitational potential energy was converted both to thermal energy and to kinetic energy.

Less than the block's gravitational potential energy when it was released, because the work done by the friction force must be

Physics 1

College Board

Exam No：AP Physics 1 Problem Set 1 Year：2024 Question No：15

Answer:

Knowledge points:

4.3 Conservation of Energy, the Work Energy Principle, and Power

Solution:

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A $$\(1-\mathrm{kg}\)$$ object is released from rest at the top of a rough-surfaced incline. The object slides with- out rotating to the bottom of the incline. The object's kinetic energy at the bottom must be

Answer:

Knowledge points:

Solution:

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