Respuesta :
Newton's 3rd law is: The force of body A on body B, is equal to the force of body B on body A.
This means that the force of the Student on the Crate (100N), is equal to the force of the Crate on the Student.
Which means the Crate also exerts a force of 100N on the student.
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Answer:
100N
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Note: Newton's 3rd law can also be written as:
Every force has an opposite and equal reaction.