If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Course: AP®︎/College Physics 1 > Unit 2

Lesson 3: Newton's second law
Science
AP®︎/College Physics 1
Newton's laws
Newton's second law
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Newton’s second law

Google Classroom

Problem

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
ms2