A person drops one rock from rest and it falls 100 meters down a cliff before hitting the ground. The person then throws an identical rock d

Question

A person drops one rock from rest and it falls 100 meters down a cliff before hitting the ground. The person then throws an identical rock downward. The amount of kinetic energy gained by the rock dropped from rest is ________ that of the second rock, and the change in potential energy of the rock dropped from rest is _________ that of the second rock. A. equal to, greater than

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Ladonna 5 months 2021-08-26T01:31:08+00:00 1 Answers 3 views 0

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    2021-08-26T01:32:49+00:00

    Answer:

    A). Equal to, greater than

    Explanation:

    Kinetic enerygy of an object is the energy that it possesses due to its motion. It can be defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

    Kinetic energy is the energy an object has because of its motion. If we want to accelerate an object, then we must apply a force. Applying a force requires us to do work. After work has been done, energy has been transferred to the object, and the object will be moving with a new constant speed.

    A force is applied on the second rock because it was thrown not dropped as the first one

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )