Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Laws of Motion
0 votes

What is the missing force on this Free Body Diagram?

Can you answer this question?

1 Answer

0 votes
  • Newton's first law states that when viewed in an inertial reference frame, an object either remains at rest or continues to move at a constant velocity, unless acted upon by an external force.
Answer: 20 N Down.
According to Newton’s first law, since the object is at rest, the net force must be zero. Choose up as positive. So down is negative.
Net force $= 0 = 12 N + 8 N - \overrightarrow{F}$
$\Rightarrow \overrightarrow{F} = 20 N$ downwards.
answered Aug 19, 2014 by balaji.thirumalai
edited Aug 19, 2014 by balaji.thirumalai

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App