A ball is thrown upward with a speed and direction such that it ...

[genevieve1028]

A ball is thrown upward with a speed and direction such that it reaches a maximum height of 18.0 m above the point it was released. At its maximum height it has a speed of 20.0 m/s. With what speed was the ball released?
 
  A)
 
  27.4 m/s
 
  B)
 
  24.3 m/s
 
  C)
 
  35.1 m/s
 
  D)
 
  31.3 m/s
 
  E)
 
  39.0 m/s

Question 2

When five equal positive charges are uniformly spaced along the x-axis, the force on the next to last charge on the right is directed
 
  A)
 
  to the right.
  B)
 
  possibly in the negative y-direction.
  C)
 
  zero.
  D)
 
  possibly in the positive y-direction.
  E)
 
  to the left.

[hramirez205]

Answer to Question 1

A

Answer to Question 2

A

[genevieve1028]

Excellent

[ryhom]

Gracias!