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Physics, 14.04.2021 08:20, jessicawolfking
A roller coaster is travelling without friction as
shown in the diagram. If the speed of the roller
coaster at A is 3.0 m/s, what is the speed at B?
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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A roller coaster is travelling without friction as
shown in the diagram. If the speed of the roller...
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