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Sagot :
This question involves the concepts of Newton's Second Law of Motion, Force, and acceleration.
The engineer must design an engine that can produce a force of "3100 N".
According to Newton's Second Law of Motion:
[tex]F = ma[/tex]
where,
F = Force of engine = ?
m = mass carried by engine = mass of cart + mass of person = 75 kg + 80 kg
m = 155 kg
a = acclereration of the cart = 20 m/s²
Therefore,
[tex]F = (155\ kg)(20\ m/s^2)[/tex]
F = 3100 N = 3.1 KN
Learn more about Newton's Second Law of Motion here:
brainly.com/question/13447525?referrer=searchResults
The attached picture shows Newton's Second Law of Motion.
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