A 10.0-kg object is initially moving with a velocity of 20.0 m/s ...

[ericka1]

A 10.0-kg object is initially moving with a velocity of 20.0 m/s to the north and is acted on by a constant net force. After the object moves 30.0 m to the north, its velocity is 12.0 m/s north.
 
  What is the constant net force acting on the object? A)
 
  66.6 N north
 
  B)
 
  3.33 N south
 
  C)
 
  42.7 N south
 
  D)
 
  214 N north
 
  E)
 
  66.6 N south

Question 2

Is it possible to have a zero electric field value between a negative and positive charge along the line joining the two charges?
 
  A)
 
  Yes, if the two charges are equal in magnitude.
  B)
 
  Yes, regardless of the magnitude of the two charges.
  C)
 
  No, a zero electric field cannot exist between the two charges.
  D)
 
  cannot be determined without knowing the separation between the two charges
  E)
 
  cannot be determined without knowing the magnitude of the charges

[Galvarado142]

Answer to Question 1

C

Answer to Question 2

C

[ericka1]

TY

[Galvarado142]

You're welcome