izabellabyan
11.02.2021 •
Physics
A fugitive tries to hop on a freight train traveling at a constant speed of 4.8 m/s m / s . Just as an empty box car passes him, the fugitive starts from rest and accelerates at a a = 1.2 m/s2 m / s 2 to his maximum speed of 6.2 m/s m / s , which he then maintains.
A) How long does it take him to catch up to the empty box car?
B) What is the distance traveled to reach the box car?
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Ответ:
rolling down a hill has KINETIC energy.