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kaydra14
 one year ago
A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s acceleration?
7.3 m/s 2
7.3 m/s
7.3 m/s 2
7.3 m/s
kaydra14
 one year ago
A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s acceleration? 7.3 m/s 2 7.3 m/s 7.3 m/s 2 7.3 m/s

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petiteme
 one year ago
Best ResponseYou've already chosen the best response.1Do you know how to calculate the acceleration?

petiteme
 one year ago
Best ResponseYou've already chosen the best response.1Ok, sure. Let's use the formula: \[A = \frac{ Vf  Vi }{ t }\] Can you substitute the values?

kaydra14
 one year ago
Best ResponseYou've already chosen the best response.1can you give me an example

petiteme
 one year ago
Best ResponseYou've already chosen the best response.1Based on your question, what do you think is the final velocity?

petiteme
 one year ago
Best ResponseYou've already chosen the best response.132 m/s :) That's your Vf = Final Velocity. What about your initial velocity?

petiteme
 one year ago
Best ResponseYou've already chosen the best response.1Good! That's your Vi = Initial velocity. What about the time?

petiteme
 one year ago
Best ResponseYou've already chosen the best response.1Great! You can substitute it already :)

kaydra14
 one year ago
Best ResponseYou've already chosen the best response.1thank you i think i got it now

petiteme
 one year ago
Best ResponseYou've already chosen the best response.1Okiedokes :) Good job!

kaydra14
 one year ago
Best ResponseYou've already chosen the best response.1when i solve the problem should it me m/s or m/s 2

kaydra14
 one year ago
Best ResponseYou've already chosen the best response.1when i solve the problem should it me m/s or m/s 2 @petiteme
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