Rebecca jogs in place for two minutes before her track meet. Rebecca weighs 100 pounds. Which of the following statements is true? A Rebecca has done 200 footp
Physics
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Question
Rebecca jogs in place for two minutes before her track meet. Rebecca weighs 100 pounds. Which of the following statements is true?
A Rebecca has done 200 footpounds of work.
B Rebecca has not done work because she has not moved a distance.
C Rebecca would accelerate more quickly is she weighed 120 pounds.
D Rebecca has done 100 footpounds of work.
A Rebecca has done 200 footpounds of work.
B Rebecca has not done work because she has not moved a distance.
C Rebecca would accelerate more quickly is she weighed 120 pounds.
D Rebecca has done 100 footpounds of work.
2 Answer

1. User Answers laurarose
The answer is A because it was 2 minutes and she weighs 100 lbs.... so 2(100)=200.... 200 lbs of work 
2. User Answers nmarcionni
Answer:
B. Rebecca has not done work because she has not moved a distance.
Explanation:
In physics, work represents the amount of energy necessary for a force to move a body a certain distance.
[tex]W=F.d[/tex], where F is the force, d the distance and W the work of the force F.
Since Rebecca jogs in place, the distance is zero, an so does the work.