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: Class 11 Physics (India) > Unit 10

Lesson 3: Work-energy theorem
Science
Class 11 Physics (India)
Work, energy and power
Work-energy theorem
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Velocity and mass from force vs. position graphs

Google Classroom
You might need: Calculator

Problem

A horizontal net force F is exerted on an object at rest. The object starts at x=0m and has a speed of 4.0ms after moving 6.0m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below.
Net horizontal force (N) vs. horizontal position (m) graph. Y-intercept is zero and it has a slope of 5 m/s.
What is the mass of the object?
Round answer to 2 significant digits.
  • 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
kg