The normal force

  • Thread starter grief
  • Start date
  • #1
grief
73
1
In which cases is the normal force acting on an object simply mg, and in which cases is it something else? If it's not mg, how can I figure out what it is?
 

Answers and Replies

  • #2
Leong
382
2
the normal force depends on the situation. but you will always need to use Newton's 2nd law.
 
  • #3
grief
73
1
ok, so I don't really understand what the normal force is. By what is it exerted, by the ground? and it's not always upward, correct? it's perpendicular to the object, I think.
 
  • #4
Leong
382
2
you have normal when you have two objects that have contact. the direction is perpendicular to the contact surface. upwards or downwards will depend on which object you are referring.
 
  • #5
grief
73
1
Ok, I got it, thank you.
 

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