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Course: High school physics - NGSS > Unit 1

Lesson 1: Force, mass, and acceleration
Science
High school physics - NGSS
Forces and motion
Force, mass, and acceleration
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Understand: force, mass, and acceleration

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Problem

Calculate the net force needed to accelerate a 70.0 kg refrigerator 5.0 ms2.
Your answer should have two significant figures.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
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