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Newton’s second law


A 2 kg mass is placed on an inclined plane. A 3 N, a 4 N, and a 5 N force each act on the mass, as shown on the free body diagram below. There are no other forces acting.
What is the magnitude of the acceleration of the mass?
  • 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