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krystal38garcia87

  • 4 years ago

An artillery shell is fired at an angle of 62.7 above the horizontal ground with an initial speed of 1520 m/s. The acceleration of gravity is 9.8 m/s2 . Find the total time of flight of the shell, neglecting air resistance. Answer in units of min

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  1. krystal38garcia87
    • 4 years ago
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    vertical is 1520sin62.7 = 1350.69819 horizontal is 1520cos62.7 = 697.14732 s=ut +1/2 at^2 therefore 1350.698t +4.9t^2 t=277.77 seconds... and then divide 697.1432/277.77 = part b Can someone tell me if this is the correct answer, or if not what I am doing wrong.

  2. mth3v4
    • 4 years ago
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    isnt this a math question?

  3. jrodriguez2315
    • 4 years ago
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    nope... university physics

  4. mth3v4
    • 4 years ago
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    ok did not see word gravity

  5. krystal38garcia87
    • 4 years ago
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    no help ? :(

  6. mth3v4
    • 4 years ago
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    looking im trying to figure out

  7. krystal38garcia87
    • 4 years ago
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    ok. thankyou

  8. mth3v4
    • 4 years ago
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    lol i can only see the first part of what you typed the rest i got lost

  9. krystal38garcia87
    • 4 years ago
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    huh?

  10. mth3v4
    • 4 years ago
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    it got too crowded up

  11. Jemurray3
    • 4 years ago
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    Assuming you plugged the values correctly into your calculator, that's correct. The procedure you went through is right. You need to convert from seconds to minutes, though. For part b, I assume you're looking for the total range of the projectile? In which case you need multiply the time of flight (in seconds) by the velocity.

  12. krystal38garcia87
    • 4 years ago
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    hey eashmore

  13. eashmore
    • 4 years ago
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    kyrstal. Didn't I answer this question for you already?

  14. krystal38garcia87
    • 4 years ago
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    it is nt right :(

  15. krystal38garcia87
    • 4 years ago
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    uhm

  16. Jemurray3
    • 4 years ago
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    You need to watch your units. Your answer should be in minutes, not seconds, right?

  17. krystal38garcia87
    • 4 years ago
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    im pulling it u one second.

  18. krystal38garcia87
    • 4 years ago
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    up*

  19. Jemurray3
    • 4 years ago
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    Well in your question it says minutes...

  20. krystal38garcia87
    • 4 years ago
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    are you good with vectors?

  21. krystal38garcia87
    • 4 years ago
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    it was right :/ just didnt read the whole problem.

  22. eashmore
    • 4 years ago
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    The work you did was correct. As Jemurray3 correctly pointed out, you need to convert seconds to minutes.

  23. krystal38garcia87
    • 4 years ago
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    can you help me with a math problem?

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