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Understand: force, mass, and acceleration

NGSS.HS: HS‑PS2‑1, HS‑PS2.A.1, HS‑PS2.A, HS‑PS2

Problem

Calculate the net force needed to accelerate a 70, point, 0, start text, space, k, g, end text refrigerator 5, point, 0, space, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction.
Your answer should have two significant figures.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
start text, N, end text
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