A 0.12-kg ball is moving at 6.0 m/s when it is hit by a bat, ...

[codyclark]

A 0.12-kg ball is moving at 6.0 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 8.0 m/s. What is the magnitude of the change in the momentum of the ball?
 a. 0.39 kgm/s
  c. 1.7 kgm/s
  b. 0.42 kgm/s
  d. 2.4 kgm/s

Question 2

A 6.00-mC charge is placed at the origin and a second charge is placed on the x axis at x = 0.300 m. If the resulting force on the second charge is 6.40 N in the negative x direction, what is the force on the charge at the origin?
 a. 6.40 N in the negative x direction
  b. 0 N
  c. 6.40 N in the positive x direction
  d. not able to be determined until the second charge is known

[Jbrasil]

Answer to Question 1

C

Answer to Question 2

C

[codyclark]

Excellent

[robbielu01]

Thanks for the timely response, appreciate it