Answered

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A man begins pushing a lwan mower across a lawn from a standing start. Which is true? A. The man is decreasing the kinetic energy of the lawn mower B. the man is increasing the kinetic energy of the lawn mower C. the kinetic energy of the lawn mower is not changing D. you cannot tell whether the kinetic energy of hte lawn mower is increasing or decreasing from the info given

Sagot :

Kinetic energy is energy in motion. With that in mind, at a stand still, an object has almost no kinetic energy. Since he is starting to push it, which is moving it, he is increasing the kinetic energy.

B
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