Which of these is an example of no work being done? a. a child pushes a toy car across a flat table b. a ball is dropped from a height of 1.00 m to the floor c. a car has the force of its brakes applied to the left while moving to the right d. a weightlifter holds 500 pounds above his head and does not move e. all of these
Which of these is an example of no work being done? a. a child pushes a toy car across a flat table b. a ball is dropped from a height of 1.00 m to the floor c. a car has the force of its brakes applied to the left while moving to the right d. a weightlifter holds 500 pounds above his head and does not move e. all of these
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 42AP
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Question
Which of these is an example of no work being done?
a. |
a child pushes a toy car across a flat table
|
|
b. |
a ball is dropped from a height of 1.00 m to the floor
|
|
c. |
a car has the force of its brakes applied to the left while moving to the right
|
|
d. |
a weightlifter holds 500 pounds above his head and does not move
|
|
e. |
all of these
|
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