science
Grade-11
Easy

Question

A student is sitting on a chair. One force that is acting on the student is the pull of gravity. According to Newton’s third law, there must be another force acting, which is:

  1. the upward push of the chair on the student. 
  2. the downward force on the student.
  3. the downward push of the chair on Earth.
  4. the upward force on Earth.

The correct answer is: the upward push of the chair on the student.

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