You throw a ball vertically upward. After the ball has left your hand and is moving upward, what forces, if any, act on the ball? a) only an upward force b) an upward and a downward force c) no forces d) only a downward force

You throw a ball vertically upward. After the ball has left your hand and is moving upward, what forces, if any, act on the ball? a) only an upward force b) an upward and a downward force c) no forces d) only a downward force

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: The Laws Of Motion

Section: Chapter Questions

Problem 5.6CQ: A child tosses a ball straight up. She says that the ball is moving away from her hand because the...

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Question

Please do question 9, 10, and 11

9. You throw a ball vertically upward. After the ball has left your hand and is moving upward,
what forces, if any, act on the ball?
a) only an upward force
b) an upward and a downward force
c) no forces
d) only a downward force
10. An out-of-gas car is rolling over the top of a hill at speed
v as shown in the diagram at right. The two forces shown
are the normal force (n) and the force of gravity (FG). At
this instant,
а) п> FG
b) п<FG
c) n= FG
d) We can't determine the relationship without knowing
the specific value for the speed v.
2013 Pearson Education, Inc
11. You are sitting on a chair. The chair pushes up on you. What is the reaction to this force?
a) the chair pushing down on the earth
b) you pulling up on the earth through gravitational attraction
c) the earth pushing up on the chair
d) you pushing down on the chair

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