A block pulled to the left with 15 N and to the right with 5 N at ...

[moongchi]

A block pulled to the left with 15 N and to the right with 5 N at the same time experiences a net force of
 
  A) 5 N.
  B) 10 N.
  C) 15 N.
  D) 20 N.

Question 2

When you quickly jerk a cart forward that has a ball resting in the middle, the
 
  A) front of the cart hits the ball.
  B) back of the cart hits the ball.
  C) neither, for the ball rides along in the middle as the cart moves forward.
  D) All of the above depending on how quickly the cart is pulled.

[InfiniteSteez]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: B