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anonymous

  • 5 years ago

if elevator goes up at 3.125 m/s2 for 4.0 seconds what is a. final speed in meters per second ? b. final speed in miles per hour ?

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  1. anonymous
    • 5 years ago
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    a. 3.125 * 4 =12.5m/s if i'm not mistaken

  2. anonymous
    • 5 years ago
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    ^^ that's right assuming zero initial velocity.

  3. anonymous
    • 5 years ago
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    b. \[12\times1000\div60\times1\div0.62\times1\div60\] =5.378mile/hour is it anwar? o.62 = 1km 1km=1000m

  4. anonymous
    • 5 years ago
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    since we have the following formula: a)\[\nu=\nu_i+at \implies v=0+(3.125)(4)=12.5 m/s\] b)\[1 meter = 0.62\times10^{-3} miles, 1 hour =3600 \sec\] the rest is trivial

  5. anonymous
    • 5 years ago
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    anwar,why dont u help me solve my differential equation problem..... ^^" if that doesnt bother u

  6. anonymous
    • 5 years ago
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    I hope it's an easy one, because it's already my bed time :(

  7. anonymous
    • 5 years ago
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    i've already post it

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