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Author Question: 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 ... (Read 86 times)

codyclark

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on: Jul 28, 2018
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


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Jbrasil

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


codyclark

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Reply 2 on: Jul 28, 2018
Excellent

yeungji

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Reply 3 on: Yesterday
Wow, this really help

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