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A 20 g plastic ball is moving to the left at 30 m/s. How
Chapter 11, Problem 9E(choose chapter or problem)
QUESTION:
Problem 9E
A 20 g plastic ball is moving to the left at 30 m/s. How much work must be done on the ball to cause it to move to the right at 30 m/s?
Questions & Answers
QUESTION:
Problem 9E
A 20 g plastic ball is moving to the left at 30 m/s. How much work must be done on the ball to cause it to move to the right at 30 m/s?
ANSWER:
Step 1 of 2
Here we need to calculate the amount of work that has to be done on a ball of mass moving to the left at velocity to make it move to the right at . For convenience, towards left is taken to be negative and towards right is taken to be positive.