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Emineyy

  • 2 years ago

A dragster travels 1/4 mi in 6.7 s. Assuming that acceleration is constant and the dragster is initially at rest, what is its velocity when it crosses the finish line? Please show step by step...

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  1. campbell_st
    • 2 years ago
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    so use \[average ..speed = \frac{distance..travelled}{time..taken}\]

  2. Emineyy
    • 2 years ago
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    I tried but my answer was wrong.) I got 267 mi/h??

  3. campbell_st
    • 2 years ago
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    did you try feet/sec..?

  4. campbell_st
    • 2 years ago
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    and I think your answer is incorrect for the right formula

  5. campbell_st
    • 2 years ago
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    1/4 mile = 5280/4 = 1320 ft avg speed 1320/6.7 = ...

  6. campbell_st
    • 2 years ago
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    even using 0.25/6.7 will give miles/sec then multiply by 60 to get miles/min then multiply by 60 to get miles/hr

  7. Emineyy
    • 2 years ago
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    the answer is given it's 269 mi/h ???

  8. campbell_st
    • 2 years ago
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    wow...

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