A ball is thrown at 20.0 m/s inside a box car moving along the tracks at 40.0 m/s. Wh is the speed of the ball relative to the ground if the ball is thrown upward? A. 0 m/s. wwwww B. -20 m/s. C. 40 m/s. D. 60 m/s.

Physics for Scientists and Engineers, Technology Update (No access codes included)
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ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: Motion In Two Dimensions
Section: Chapter Questions
Problem 4.47P: A police car traveling at 95.0 km/h is traveling west, chasing a motorist traveling at 80.0 km/h....
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A ball is thrown at 20.0 m/s inside a box car moving along the tracks at 40.0 m/s. What
is the speed of the ball relative to the ground if the ball is thrown upward?
A. 0 m/s.
B. -20 m/s.
C. 40 m/s.
D. 60 m/s.
Transcribed Image Text:A ball is thrown at 20.0 m/s inside a box car moving along the tracks at 40.0 m/s. What is the speed of the ball relative to the ground if the ball is thrown upward? A. 0 m/s. B. -20 m/s. C. 40 m/s. D. 60 m/s.
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