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romanna [79]
3 years ago
10

A group of students gather for some fun during their summer break from school. Kendall and Jacoby have a water balloon fight dur

ing one of those “lazy” days of summer.
Marie, Gary, and Lois remember a video about work that their science teacher, Ms. Lewis, showed them before they left for vacation.



Marie says: “If Kendall throws a water balloon at Jacoby, there is no work being done. It’s just boys being boys.”



Gary says: “If Kendall throws a water balloon at Jacoby, there is work being done by Jacoby because he has to run.”



Lois says: “If Kendall throws a water balloon at Jacoby, there is work being done because Kendall had to exert a force that made the water balloon travel a certain distance to hit Jacoby.”



Which one of them is correct and why? Answer in complete sentences! You can type on this document and turn in.
Physics
1 answer:
umka21 [38]3 years ago
5 0

Answer:

lois is right because throwing the water balloon is exerting a force running is not

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Answer:

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v=u+at\\\Rightarrow t=\frac{v-u}{a}\\\Rightarrow t=\frac{0-4.45}{-9.81}\\\Rightarrow t=0.45\ s

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Answer:

 T = 5.36 s

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given,

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