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Concept of Net Force
1)A force is
  
2)What is the net force when two equal forces acts in opposite direction?
  
3)Which among the following is not an example of pulling force?
  
4)The force that acts at a distance is known as
  
5)When two forces acts in the same direction, the net force is
  
6)A person push an object towards east and another person pulls the same object towards east. If both of them apply the same force, then the net force is ____.
  
7)Which among the following is a contact force?
  
8)An object attract pieces of iron when brought near it. Which force is used here?
  
9)Identify the force that resists motion when two objects are rubbed against each other.
  
10)What happens to air resistance as the speed of the object increases?