Answered

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13. A roller coaster is moving at a speed of 39 m/s. How much time does it take to stopwhile accelerating at -6 m/s2?

Sagot :

The average acceleration can be written as:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

Then, for our case, we can find out the time taken by applying:

[tex]\Delta t=\frac{\Delta v}{a}\rightarrow\Delta t=\frac{39}{6}=6.5s[/tex]

Then, the total time taken is equal to 6.5s

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