- #1

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I used the 2nd formula originally (X=VoT+1/2aT^2) but I wasn't getting anywhere. Can someone point me in the right direction on how to do this problem? Any help is appreciated. Thanks.

- Thread starter kfink85
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- #1

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I used the 2nd formula originally (X=VoT+1/2aT^2) but I wasn't getting anywhere. Can someone point me in the right direction on how to do this problem? Any help is appreciated. Thanks.

- #2

Doc Al

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Try figuring out the average speed of the truck and see what that tells you.

- #3

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I found it to be 4.71 m/s but I'm still stuck. Where do I go next?

- #4

Doc Al

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Good. Now use that to find the initial speed:

[tex]v_{ave} = (v_i + v_f)/2[/tex]

[tex]v_{ave} = (v_i + v_f)/2[/tex]

- #5

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Thanks for your help. I really appreciate it.

I got 6.62 m/s for part A and used V=Vo+at to get -.45m/s^2 on part B.

I hope this is correct. I'm pretty sure A is.

Can anyone confirm?

I got 6.62 m/s for part A and used V=Vo+at to get -.45m/s^2 on part B.

I hope this is correct. I'm pretty sure A is.

Can anyone confirm?

Last edited:

- #6

Doc Al

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Looks good to me.

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