True.
Kinetic Enegry
There is no such thing as a kinetic reaction. Any moving body has kinetic energy. When a rock falls, its gravitational potential energy is transformed to kinetic energy.
That is a trick question, but I believe it is kinetic energy.
You can assume for this problem that "total energy" refers to "total mechanical energy", i.e., potential energy + kinetic energy.
True.
A rock falling of a cliff.
That is a trick question, but I believe it is kinetic energy.
when the rock falls it gain kinetic energy when it falls.
A falling rock. In the air it has potential energy, as it falls it gets kinetic energy.
Kinetic Enegry
There is no such thing as a kinetic reaction. Any moving body has kinetic energy. When a rock falls, its gravitational potential energy is transformed to kinetic energy.
That is a trick question, but I believe it is kinetic energy.
You can assume for this problem that "total energy" refers to "total mechanical energy", i.e., potential energy + kinetic energy.
1,100 j 110 j
A falling object.A falling object.A falling object.A falling object.
None at all. The Earth is a big rock, falling around the Sun in its orbit. It expends no energy at all.